83_FR_64473 83 FR 64233 - Airworthiness Directives; The Boeing Company Airplanes

83 FR 64233 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 240 (December 14, 2018)

Page Range64233-64239
FR Document2018-26532

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777-200 and -300 series airplanes equipped with Rolls-Royce Model RB211-Trent 800 engines. This AD was prompted by reports of inadequate clearance between the thermal protection system (TPS) insulation blankets and the electronic engine control (EEC) wiring, which resulted in damaged wires. This AD requires repetitive inspections of the EEC wire bundles and clips, and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 240 (Friday, December 14, 2018)
[Federal Register Volume 83, Number 240 (Friday, December 14, 2018)]
[Rules and Regulations]
[Pages 64233-64239]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-26532]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0246; Product Identifier 2017-NM-011-AD; Amendment 
39-19522; AD 2018-25-11]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model 777-200 and -300 series airplanes equipped 
with Rolls-Royce Model RB211-Trent 800 engines. This AD was prompted by 
reports of inadequate clearance between the thermal protection system 
(TPS) insulation blankets and the electronic engine control (EEC) 
wiring, which resulted in damaged wires. This AD requires repetitive 
inspections of the EEC wire bundles and clips, and corrective actions 
if necessary. We are issuing this AD to address the unsafe condition on 
these products.

DATES: This AD is effective January 18, 2019.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of January 18, 
2019.

ADDRESSES: For service information identified in this final rule, 
contact Boeing Commercial Airplanes, Attention: Contractual & Data 
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 
90740-5600; telephone 562-797-1717; internet https://www.myboeingfleet.com. You may view this service information at the 
FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. 
For information on the availability of this material at the FAA, call 
206-231-3195. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0246.

Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0246; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the regulatory evaluation, any comments received, and 
other

[[Page 64234]]

information. The address for Docket Operations (phone: 800-647-5527) is 
Docket Operations, U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Kevin Nguyen, Aerospace Engineer, 
Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des 
Moines, WA 98198; phone and fax: 206-231-3555; email: 
[email protected].

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain The Boeing Company 
Model 777-200 and -300 series airplanes equipped with Rolls-Royce Model 
RB211-Trent 800 engines. The NPRM published in the Federal Register on 
April 10, 2017 (82 FR 17154). The NPRM was prompted by reports of 
inadequate clearance between the TPS insulation blankets and the EEC 
wiring, which resulted in damaged wires. The NPRM proposed to require 
repetitive inspections of the EEC wire bundles and clips, and 
corrective actions if necessary.
    We are issuing this AD to address damaged wires, which could result 
in in-flight shutdown of the engine, or the inability to properly 
control thrust, and consequent reduced controllability of the airplane.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. The following presents the comments received on the 
NPRM and the FAA's response to each comment.

Support for the Proposed Rule

    The Air Line Pilots Association, International (ALPA), Boeing, and 
Rolls-Royce all supported the NPRM.

Request To Include Additional Service Information

    Air New Zealand (ANZ) suggested that paragraph (g) of the proposed 
AD could be complied with using either Boeing Special Attention Service 
Bulletin 777-78-0071; or Boeing Service Bulletin 777-78-0082; because 
certain configurations of thrust reversers (T/Rs) are not covered by 
Boeing Service Bulletin 777-78-0082, but are covered by Boeing Special 
Attention Service Bulletin 777-78-0071. ANZ noted that paragraph (h) of 
the proposed AD provided credit for previous actions if the previous 
inspections were performed in accordance with either Boeing Special 
Attention Service Bulletin 777-78-0071; or Boeing Service Bulletin 777-
78-0082.
    American Airlines (AAL) explained that Boeing Service Bulletin 777-
78-0082, Revision 1, dated June 15, 2015, is not effective to its fleet 
configuration and requested that paragraph (g) of the proposed AD be 
revised to include Boeing Special Attention Service Bulletin 777-78-
0071, Revision 2, dated July 23, 2013, as an additional method of 
compliance for those airplanes that are identified in Boeing Special 
Attention Service Bulletin 777-78-0071, Revision 2, dated July 23, 
2013, but not affected by Boeing Service Bulletin 777-78-0082, Revision 
1, dated June 15, 2015. AAL also provided the definitions for a general 
visual inspection and detailed inspection from Boeing Special Attention 
Service Bulletin 777-78-0071, Revision 2, dated July 23, 2013, to 
support its justification that a general visual inspection would 
identify damage to components within the inspection area identified in 
the service information and therefore offers an equivalent level of 
safety to that of a detailed inspection.
    Delta Air Lines (DAL) explained that Boeing Service Bulletin 777-
78-0082, Revision 1, dated June 15, 2015, is not applicable to all the 
T/Rs affected by the proposed AD, and suggested that paragraph (g) of 
the proposed AD follow the same structure as AD 2016-11-16, Amendment 
39-18543 (81 FR 39547, June 17, 2016) (``AD 2016-11-16''), which allows 
for the use of Boeing Special Attention Service Bulletin 777-78-0071, 
Revision 2, dated July 23, 2013, in paragraph (k)(1) of AD 2016-11-16 
or Boeing Service Bulletin 777-78-0082, Revision 1, dated June 15, 
2015, in paragraph (k)(2) of AD 2016-11-16, according to airplane 
effectivity. DAL observed that the referenced service information was 
acknowledged in AD 2016-11-16 to provide the same acceptable level of 
safety, and DAL would prefer that either service bulletin be allowed as 
an acceptable method of compliance for the inspections required by 
paragraph (g) of this AD.
    We do not agree with the commenter's request to include additional 
service information as an additional method of compliance for the 
inspections required by paragraph (g) of this AD. Boeing Special 
Attention Service Bulletin 777-78-0071, Revision 2, dated July 23, 
2013; and Boeing Service Bulletin 777-78-0082, dated November 9, 2011; 
do not provide inspection requirements for engine configurations that 
have incorporated Rolls-Royce Service Bulletin RR.211-71-H824, dated 
July 30, 2014. Only Boeing Service Bulletin 777-78-0082, Revision 1, 
dated June 15, 2015, contains detailed inspection requirements and 
instructions that are applicable to engine configurations that either 
have or have not incorporated Rolls-Royce Service Bulletin RR.211-71-
H824, dated July 30, 2014. As a result, the EEC wire bundle inspections 
specified by Boeing Service Bulletin 777-78-0082, Revision 1, dated 
June 15, 2015, are applicable to the ANZ, AAL, and DAL fleet 
configurations that are identified in Boeing Special Attention Service 
Bulletin 777-78-0071, Revision 2, dated July 23, 2013.
    Consistent with the requirements of paragraph (k) of AD 2016-11-16, 
we determined that a general visual inspection as specified in Boeing 
Special Attention Service Bulletin 777-78-0071, Revision 2, dated July 
23, 2013; and Boeing Service Bulletin 777-78-0082, dated November 9, 
2011; accomplished prior to the effective date of this AD is acceptable 
when looking for damage of the EEC wire bundle and clips. On or after 
the effective date of this AD, a detailed inspection is required as 
specified in Boeing Service Bulletin 777-78-0082, Revision 1, dated 
June 15, 2015. We have not changed the AD in this regard.

Request To Clarify Paragraph (c) Applicability of the Proposed AD

    DAL found the ``and/or'' construction of paragraphs (c)(1) and 
(c)(2) of the proposed AD confusing, and requested clarification 
regarding the applicability of airplanes that meet one of the two 
conditions or both conditions specified in paragraphs (c)(1) and (c)(2) 
of the proposed AD.
    We agree with DAL's request to clarify the applicability of this 
AD. We have revised paragraph (c) of this AD to include airplanes that 
have incorporated Boeing Alert Service Bulletin 777-78A0094, dated July 
29, 2014, and the condition specified in paragraph (c)(1) or (c)(2) of 
this AD is met on any engine, or both conditions specified in (c)(1) 
and (c)(2) of this AD are met on any engine.

Request To Clarify the Intent of the Proposed AD

    DAL requested that we clarify that the intent of the proposed AD is 
to maintain the EEC wire bundles inspections described in paragraph (k) 
of AD 2016-11-16 until all three of the following terminating actions 
have been completed: (1) Incorporating Boeing Alert Service Bulletin 
777-78A0094, dated July 29, 2014; (2) incorporating Work Package 7 of 
Boeing Special Attention Service Bulletin 777-78-0071, Revision 2, 
dated July 23, 2013; or

[[Page 64235]]

Part 8 or Part 9 of Boeing Service Bulletin 777-78-0082, Revision 1, 
dated June 15, 2015; as applicable; and (3) incorporating Rolls-Royce 
Service Bulletin RR.211-71-H824, dated July 30, 2014.
    We agree to clarify that the intent of this AD is to maintain the 
EEC wire bundles repetitive inspections described in paragraph (k) of 
AD 2016-11-16 for certain airplanes. The repetitive inspections 
required by paragraph (g) of this AD are no longer required after re-
contoured insulation blankets part numbers (P/N) 315W5115-60, -62, and 
-64 are installed on the right T/R half by accomplishing either Boeing 
Special Attention Service Bulletin 777-78-0071, Revision 2, dated July 
23, 2013; or Boeing Service Bulletin 777-78-0082, Revision 1, dated 
June 15, 2015; and the EEC wire bundle and clip are re-routed on the 
engine by accomplishing Rolls-Royce Service Bulletin RR.211-71-H824, 
dated July 30, 2014. No change to this AD is needed in this regard.

Request To Revise Paragraph (c) Applicability of the Proposed AD

    AAL requested that paragraph (c) of the proposed AD be revised to 
exclude airplanes with the following configuration combinations from 
the applicability of paragraph (g) of the proposed AD:
     Engines with or without incorporation of Rolls-Royce 
Service Bulletin RR.211-71-H824, dated July 30, 2014; T/R halves that 
incorporated Boeing Alert Service Bulletin 777-78A0094, dated July 29, 
2014; installed re-contoured insulation blankets (P/N 315W5115-60, -62, 
and -64 for the right half and P/N 315W5115-63, -59, and -61 for the 
left half) by incorporating Work Package 7 of Boeing Special Attention 
Service Bulletin 777-78-0071, Revision 2, dated July 23, 2013; and 
accomplishment of EEC wire bundle and clip inspection using Work 
Package 6 of Boeing Special Attention Service Bulletin 777-78-0071, 
Revision 2, dated July 23, 2013, when that T/R was installed.
     Engines with incorporation of Rolls-Royce Service Bulletin 
RR.211-71-H824, dated July 30, 2014, regardless of T/R half insulation 
blanket standards (re-contoured or non-re-contoured insulation 
blankets).
    AAL provided the following justifications for their request. We 
have included our response to those justifications.
    AAL explained that insulation blanket P/N 315W5115-60, -62, and -64 
are optional re-contoured insulation blankets introduced by Boeing 
Special Attention Service Bulletin 777-78-0071, Revision 2, dated July 
23, 2013, to replace original P/N 315W5115-2, -6, or -20 non-re-
contoured insulation blankets that caused the initial potential EEC 
wire bundle and clip frettage condition. AAL noted that the optional 
re-contoured insulation blankets were designed with the addition of 
rulon frettage protection on the insulation blanket face sheet to 
prevent potential EEC wire bundle and clip frettage at the inspection 
area of paragraph (g) of the proposed AD. AAL stated that the 
installation of the re-contoured insulation blankets therefore provides 
an equivalent level of safety to the repetitive EEC wire bundle and 
clip inspections.
    AAL reasoned that Rolls-Royce Service Bulletin RR.211-71-H824, 
dated July 30, 2014, changes the EEC wire bundle routing to provide 
additional clearance with the T/R non-re-contoured insulation blankets 
to eliminate the potential frettage in the area of inspection as 
specified in paragraph (g) of the proposed AD and provides an 
equivalent level of safety to the repetitive EEC wire bundle and clip 
inspections. AAL added that any existing harness damage will be or has 
been addressed during incorporation of this service bulletin during an 
engine shop visit.
    We agree to clarify. We have determined that after accomplishing 
the work instructions in Boeing Alert Service Bulletin 777-78A0094, 
dated July 29, 2014, there is still not sufficient clearance between 
the insulation blankets and EEC wire bundle W0800 and its associated 
clip. The EEC wire bundle and clip could still be damaged from making 
contact with insulation blankets when one or both of the following 
conditions exist:
     The EEC wire and clip are not re-routed on the engine (did 
not incorporate Rolls-Royce Service Bulletin RR.211-71-H824, dated July 
30, 2014); or
     Non-re-contoured insulation blankets (P/N 315W5115-2, -6, 
and -20) are installed on the right T/R half.
    We have determined that in order to have proper clearance between 
the insulation blankets and the EEC wiring, and to prevent damage, 
Rolls-Royce Service Bulletin RR.211-71-H824, dated July 30, 2014, must 
be incorporated to re-route the EEC wire bundle and clip on the engine; 
and re-contoured insulation blankets P/N 315W5115-60, -62, and -64 must 
be installed on the right T/R half by accomplishing either Boeing 
Special Attention Service Bulletin 777-78-0071, Revision 2, dated July 
23, 2013; or Boeing Service Bulletin 777-78-0082, Revision 1, dated 
June 15, 2015.
    AAL pointed out that the insulation blankets have repetitive 
airworthiness limitation inspection requirements as specified by Boeing 
Maintenance Planning Document (MPD) D622W001-9, Section 9, 
Airworthiness Limitations (AWLs) and Certification Maintenance 
Requirements (CMRs), Airworthiness Limitation Item (ALI) 78-AWL-01 that 
maintain the blanket rulon material condition. AAL noted that T/Rs that 
incorporate Work Package 7 of Boeing Special Attention Service Bulletin 
777-78-0071, Revision 2, dated July 23, 2013, for installing re-
contoured insulation blankets no longer have a T/R configuration 
specified by Boeing Special Attention Service Bulletin 777-78-0071, 
dated November 25, 2009; or Boeing Special Attention Service Bulletin 
777-78-0071, Revision 1, dated September 8, 2010; and are not 
applicable to the EEC wire bundle and clip inspection as specified in 
Work Package 6 of Boeing Special Attention Service Bulletin 777-78-
0071, Revision 2, dated July 23, 2013.
    AAL also noted that Rolls-Royce Model RB211-Trent 800 engine EEC 
wire runs already receive repetitive zonal general visual inspections 
as specified by Boeing MPD D622W001, Section 3, Zonal Inspection 
Program, item 71-864-01 and item 71-878-02, and receive repetitive 
detailed inspections as specified by Boeing MPD D622W001, Section 1, 
System Maintenance Program, item 20-540-01 and item 20-540-02, as part 
of a Lightning/High Intensity Radiated Fields maintenance program. AAL 
stated that these inspections are regulated by the 14 CFR 121.1111 
required electrical wiring interconnection systems (EWIS) maintenance 
program requirements.
    In regards to AAL's reference to Boeing MPD D622W001-9, Section 9, 
AWLs and CMRs, ALI 78-AWL-01, we note that Boeing MPD D622W001-9, 
Section 9, AWLs and CMRs, ALI 78-AWL-01 has requirements to inspect the 
insulation blankets for damage, but it does not directly inspect the 
EEC wire bundle and clip for damage. The intent of this AD is to 
specifically inspect the EEC wire bundle and clip for damage. We agree 
with AAL's justification that T/Rs with re-contoured insulation 
blankets installed no longer have a T/R configuration as specified by 
Boeing Special Attention Service Bulletin 777-78-0071, November 25, 
2009; or Boeing Special Attention Service Bulletin 777-78-0071, 
Revision 1, dated September 8, 2010. Boeing Special Attention Service 
Bulletin 777-78-0071, Revision 2, dated

[[Page 64236]]

July 23, 2013, does not have clear information and instructions to do a 
detailed EEC inspection for T/R halves with re-contoured blankets. 
However, as explained by Boeing and Boeing Service Bulletin 777-78-
0082, Revision 1, dated June 15, 2015, instructions, and reinforced by 
the requirements in this AD, EEC wire bundles and clips are to be 
inspected when one or both of the previously described conditions 
exists where the EEC wire bundle and clip could still be damaged from 
making contact with insulation blankets. We note that this AD mandates 
the use of Boeing Service Bulletin 777-78-0082, Revision 1, dated June 
15, 2015, to do the EEC wire bundle and clip detailed inspections, 
which is applicable to airplanes in a configuration specified in Boeing 
Special Attention Service Bulletin 777-78-0071, Revision 2, dated July 
23, 2013.
    We infer that AAL is suggesting that the existing inspections in 
Boeing MPD D622W001, Section 3, Zonal Inspection Program, item 71-864-
01 and item 71-878-02, and detailed inspections in Boeing MPD D622W001, 
Section 1, System Maintenance Program, item 20-540-01 and item 20-540-
02 provide an equivalent level of safety to the repetitive wire bundle 
and clip inspections. We disagree with that suggestion. We note that 
part of the EWIS maintenance program requirement for operators is to 
maintain continued airworthiness of the electrical wiring 
interconnection systems on the airplane, including the engine. The EWIS 
maintenance program requirement is based on the assumption that the 
type design is compliant and is not expected to create wiring problems 
if the original configuration is maintained. This AD was proposed 
because the existing design was found to have details that are expected 
to lead to a wiring chafing problem on at least some airplanes. 
Therefore, we determined that more frequent and detailed inspections 
are necessary to address this unsafe condition. The inspections in 
Boeing MPD D622W001, Section 3, Zonal Inspection Program, item 71-864-
01 and item 71-878-02; and Boeing MPD D622W001, Section 1, System 
Maintenance Program, item 20-540-01 and item 20-540-02; are not 
sufficient to address the identified unsafe condition of this AD. The 
repetitive inspection intervals for Boeing MPD D622W001, Section 1, 
System Maintenance Program, item 20-540-01 and item 20-540-02; and 
Boeing MPD D622W001, Section 3, Zonal Inspection Program, item 71-864-
01 and item 71-878-02; are longer than the 2,000 flight-hour repetitive 
inspection interval specified in paragraph (g) of this AD, and they can 
be escalated to a longer interval without FAA ACO Branch approval. In 
accordance with 14 CFR part 39 (Sec.  39.5 and Sec.  39.13), this AD is 
issued to address the unsafe condition identified in paragraph (e) of 
this AD.
    Therefore, we do not agree to revise paragraph (c) of this AD as 
proposed by the commenter. We did not change the AD in this regard.

Request To Include Terminating Action

    DAL requested that we include terminating action for airplanes that 
accomplish the modification in paragraphs (c)(1) and (c)(2) of the 
proposed AD. DAL explained that paragraph (c) of the proposed AD states 
that if airplanes with Rolls-Royce engines, which have accomplished the 
action in Boeing Alert Service Bulletin 777-78A0094, dated July 29, 
2014, have neither the condition in paragraph (c)(1) of the proposed AD 
nor the condition in paragraph (c)(2) of the proposed AD, that the rule 
is not applicable. DAL noted that there is no terminating action 
paragraph in the proposed AD.
    We agree to clarify the requirements of this AD. As discussed in 
the above comments: For any affected airplane on which the modification 
specified in paragraph (c)(2) of this AD, and the replacement of all 
affected parts (non-re-contoured insulation blankets) identified in 
paragraph (c)(1) of this AD with non-affected parts (re-contoured 
insulation blankets) have been accomplished on both engines, that 
airplane is no longer affected by this AD. For clarity, we have added 
paragraph (i) to this AD to specify terminating actions for the 
repetitive inspections required by paragraph (g) of this AD and 
redesignated subsequent paragraphs accordingly.

Request To Extend the Compliance Time

    AAL requested that for engines that have not incorporated Rolls-
Royce Service Bulletin RR.211-71-H824, dated July 30, 2014, the 
inspection required by paragraph (g) of this AD be required within 
2,000 flight hours, rather than 500 flight hours, after the effective 
date of the AD, if re-contoured insulation blankets (P/N 315W5115-60, -
62, -64) were installed on the T/R by Work Package 7 of Boeing Special 
Attention Service Bulletin 777-78-0071, Revision 2, dated July 23, 
2013, and, during installation of the insulation blanket on the T/R 
halves, the EEC wire bundle inspection was accomplished on the engine 
in accordance with Work Package 6 of Boeing Special Attention Service 
Bulletin 777-78-0071, Revision 2, dated July 23, 2013.
    We do not agree with the commenter's request because we have 
determined that both the EEC wiring modification specified in Rolls-
Royce Service Bulletin RR.211-71-H824, dated July 30, 2014, and 
installation of the re-contoured insulation blankets specified in Work 
Package 7 of Boeing Special Attention Service Bulletin 777-78-0071, 
Revision 2, dated July 23, 2013, are necessary to prevent the chafing 
condition that is the subject of this AD. In the absence of both of 
those modifications, we have determined that a 2,000 flight hour 
inspection interval is necessary. The 500 flight hours is meant to be a 
grace period for those airplanes on which the interval has lapsed (due 
to inspections being terminated in AD 2016-11-16), as well as airplanes 
that are nearing the end of the inspection interval. AAL did not 
provide adequate justification for a longer grace period. We did not 
change this AD in this regard.

Request To Clarify the Requirements of Paragraph (g) of the Proposed AD 
for a Certain Repaired Wire Condition

    For engines which require inspections as specified in paragraph (g) 
of this AD, AAL requested clarification that the inspection of the wire 
bundle can be accomplished without removal of any harness 
polytetrafluoroethylene (PTFE) tape protection applied to the wire 
bundle, provided that the PTFE tape protection is not damaged, and 
provided the wire bundle had received an inspection and was repaired if 
damaged prior to application of the protective tape wrap. AAL explained 
that it had already identified the potential wire bundle interference 
condition through its continuous airworthiness maintenance program 
(CAMP) prior to release of Boeing Special Attention Service Bulletin 
777-78-0071, Revision 2, dated July 23, 2013. As a result, AAL 
accomplished a fleet-wide general visual inspection of the EEC wire 
bundle W0800 for damage in the inspection area, accomplished any 
required repairs, and then wrapped the W0800 harness with PTFE tape in 
accordance with the approved procedures in its CAMP.
    We do not agree with the commenter's request because we do not have 
sufficient information in the AAL request to clarify nor expand 
paragraph (g) of this AD for wire bundles that have been modified by 
AAL's CAMP. We do not consider it appropriate to include various 
provisions in an AD applicable only to individual airplane 
configurations or to a single operator's

[[Page 64237]]

unique use of an affected airplane. However, AAL and others may request 
an alternative method of compliance (AMOC) in accordance with the 
procedures specified in paragraph (j) of this AD, provided sufficient 
data are submitted to substantiate that the AMOC would provide an 
acceptable level of safety. We did not change this AD in this regard.

Request To Clarify Requirements of Paragraph (g) of the Proposed AD for 
Engine Inspection in the Shop

    AAL requested clarification to paragraph (g) of the proposed AD to 
confirm that after the effective date of this AD, installation of an 
engine that had a shop visit meets the requirements of an inspection, 
and in that case, that the next inspection is required within 2,000 
hours of engine installation.
    We agree to clarify paragraph (g) of this AD. If, during a shop 
visit, an EEC wire bundle and clamp inspection was done as specified in 
Boeing Special Attention Service Bulletin 777-78-0071, Revision 2, 
dated July 23, 2013; or Boeing Service Bulletin 777-78-0082, dated 
November 9, 2011; or Boeing Service Bulletin 777-78-0082, Revision 1, 
dated June 15, 2015; then the next inspection can be done within 2,000 
flight hours from the last inspection done in the shop. However, if an 
inspection other than the one specified in Boeing Special Attention 
Service Bulletin 777-78-0071, Revision 2, dated July 23, 2013; or 
Boeing Service Bulletin 777-78-0082, dated November 9, 2011; or Boeing 
Service Bulletin 777-78-0082, Revision 1, dated June 15, 2015; was 
done, operators must request an AMOC in accordance with the procedures 
specified in paragraph (j) of this AD. No change to this AD is needed.

Request To Modify Relationship to Affected ADs

    DAL requested that AD 2005-07-24, Amendment 39-14049 (70 FR 18285, 
April 11, 2005) (``AD 2005-07-24'') and AD 2016-11-16 be added to 
paragraph (b) of the proposed AD. DAL also requested that the proposed 
AD be incorporated as a revision to AD 2016-11-16 or a supersedure to 
AD 2016-11-16 in order to provide a clear relationship between the 
actions required. DAL observed that paragraph (b) of the proposed AD 
states that no ADs are affected by this rule, but paragraph (l) of AD 
2016-11-16 states that accomplishment of Boeing Alert Service Bulletin 
777-78A0094, dated July 29, 2014, will terminate paragraph (k) of AD 
2016-11-16. DAL also submitted that paragraph (k) of AD 2016-11-16 
pertains to the EEC wire bundle inspections that are described in the 
``Discussion'' section of the proposed rule. DAL stated that paragraph 
(q) of AD 2016-11-16 describes accomplishments that are terminating 
actions to AD 2005-07-24, which include the EEC wire bundle inspections 
as described in paragraph (k) of AD 2016-11-16. DAL contended that the 
proposed rule reinstates these inspections and therefore affects the 
requirements of AD 2005-07-24 as described in paragraph (q) of AD 2016-
11-16.
    We do not agree with the commenter's request because this AD is a 
stand-alone AD and does not impact nor change the requirements of AD 
2005-07-24 or AD 2016-11-16. The T/R inner wall and TPS configuration, 
and certain engine configurations affected by the actions in this AD 
are not configurations affected by AD 2005-07-24 or AD 2016-11-16. This 
AD is only applicable to airplanes with certain T/R halves on which the 
actions in Boeing Alert Service Bulletin 777-78A0094, dated July 29, 
2014, have been accomplished, and the condition specified in paragraph 
(c)(1) or (c)(2) of this AD is met on any engine, or both conditions 
specified in (c)(1) and (c)(2) of this AD are met on any engine. This 
AD is not applicable to airplanes with T/R halves of certain inner wall 
and TPS configurations specified in AD 2005-07-24 and AD 2016-11-16 on 
which the actions specified in Boeing Alert Service Bulletin 777-
78A0094, dated July 29, 2014, have not been accomplished. Therefore, 
this AD has no direct relationship to and does not change the 
requirements of AD 2005-07-24 or AD 2016-11-16.
    After accomplishing paragraph (l) of AD 2016-11-16 to install 
serviceable thrust reverser halves (by accomplishing Boeing Alert 
Service Bulletin 777-78A0094, dated July 29, 2014), and paragraph (n) 
of AD 2016-11-16 to revise the maintenance or inspection program, the 
repetitive inspection requirements of AD 2016-11-16 are terminated. 
However, Boeing and the FAA have determined that inadequate clearance 
between the TPS non-re-contoured insulation blankets and the EEC wiring 
still exists after completing the actions required by AD 2016-11-16, 
which will result in damaged wires, and an unsafe condition still 
exists.
    We have determined not to revise or supersede AD 2016-11-16 because 
of the high rate of inner wall failures and the urgency of the safety 
issue. We have also determined that the required actions must be 
accomplished to ensure continued safety. Revising this AD as requested 
would necessitate (under the provisions of the Administrative Procedure 
Act) reissuing the notice, reopening the period for public comment, 
considering additional comments subsequently received, and eventually 
issuing a final rule. In light of this, and in consideration of the 
unsafe condition, we have determined that further delay of this AD is 
not appropriate. We have not changed this AD in this regard.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this final rule with the change described previously and minor 
editorial changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this final 
rule.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Service Bulletin 777-78-0082, Revision 1, dated 
June 15, 2015. The service information describes, among other things, 
procedures for repetitive inspections of the EEC wire bundles and 
clips, and corrective actions if necessary.
    We also reviewed Boeing Special Attention Service Bulletin 777-78-
0071, Revision 2, dated July 23, 2013. This service information 
describes, among other things, procedures for installing re-contoured 
insulation blankets on the right T/R halves and performing an EEC wire 
bundle and clip inspection.
    We also reviewed Rolls-Royce Service Bulletin RR.211-71-H824, dated 
July 30, 2014. This service information describes procedures for 
modifying the engine by rerouting the EEC wire bundle and clip.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

Costs of Compliance

    We estimate that this AD affects 55 airplanes of U.S. registry. We 
estimate the following costs to comply with this AD:

[[Page 64238]]



                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                Cost on U.S.
          Action                 Labor cost          Parts cost       Cost per product           operators
----------------------------------------------------------------------------------------------------------------
Inspection...............  Up to 6 work-hours x                $0  Up to $510 per          Up to $28,050 per
                            $85 per hour = $510                     inspection cycle.       inspection cycle.
                            per inspection cycle.
----------------------------------------------------------------------------------------------------------------

    We have received no definitive data that would enable us to provide 
cost estimates for the repairs specified in this AD. We estimate the 
following costs to do any necessary replacements that would be required 
based on the results of the inspection. We have no way of determining 
the number of aircraft that might need these repairs or replacements:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Replacement of EEC wire harness...............  1 work-hour x $85 per hour = $85          $8,500          $8,585
----------------------------------------------------------------------------------------------------------------

    According to the manufacturer, some of the costs of this AD may be 
covered under warranty, thereby reducing the cost impact on affected 
individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all costs in our cost 
estimate.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII: Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701: ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to transport category airplanes and 
associated appliances to the Director of the System Oversight Division.

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13   [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2018-25-11 The Boeing Company: Amendment 39-19522; Docket No. FAA-
2017-0246; Product Identifier 2017-NM-011-AD.

(a) Effective Date

    This AD is effective January 18, 2019.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 777-200 and -300 
series airplanes, certificated in any category, equipped with Rolls-
Royce Model RB211-Trent 800 engines, on which the actions specified 
in Boeing Alert Service Bulletin 777-78A0094 have been incorporated, 
and the condition specified in paragraph (c)(1) or (c)(2) of this AD 
is met on any engine, or both conditions specified in (c)(1) and 
(c)(2) of this AD are met on any engine.
    (1) Thermal protection system (TPS) non-re-contoured insulation 
blankets having part numbers (P/N) 315W5115-2, -6, or -20 are 
installed on the thrust reverser (T/R) inner wall.
    (2) Rolls-Royce Service Bulletin RR.211-71-H824, dated July 30, 
2014, has not been incorporated on the engine.

(d) Subject

    Air Transport Association (ATA) of America Code 78, Engine 
exhaust.

(e) Unsafe Condition

    This AD was prompted by reports of inadequate clearance between 
the TPS insulation blankets and the electronic engine control (EEC) 
wiring, which resulted in damaged wires. We are issuing this AD to 
address damaged wires, which could result in in-flight shutdown of 
the engine, or the inability to properly control thrust, and 
consequent reduced controllability of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

[[Page 64239]]

(g) Repetitive EEC Wire Bundle Inspection

    Within 2,000 flight hours since the most recent EEC wire bundle 
inspection done as specified in Boeing Special Attention Service 
Bulletin 777-78-0071; or Boeing Service Bulletin 777-78-0082; or 
within 500 flight hours after the effective date of this AD, 
whichever occurs later: Do a detailed inspection for damage of the 
EEC wire bundles and clips, and do all applicable corrective 
actions, in accordance with the Accomplishment Instructions of 
Boeing Service Bulletin 777-78-0082, Revision 1, dated June 15, 
2015. Do all applicable corrective actions before further flight. 
Repeat the inspection thereafter at intervals not to exceed 2,000 
flight hours.

(h) Credit for Previous Actions

    This paragraph provides credit for the actions specified in 
paragraph (g) of this AD, if those actions were performed before the 
effective date of this AD using the service information specified in 
paragraph (h)(1) or (h)(2) of this AD.
    (1) Boeing Special Attention Service Bulletin 777-78-0071, 
Revision 2, dated July 23, 2013.
    (2) Boeing Service Bulletin 777-78-0082, dated November 9, 2011.

(i) Optional Terminating Action

    Accomplishing the actions in paragraph (i)(1) and (i)(2) of this 
AD terminates the repetitive inspections required by paragraph (g) 
of this AD for the modified engine installation only.
    (1) Installing re-contoured insulation blankets P/N 315W5115-60, 
-62, and -64 on the right T/R halves in accordance with the 
Accomplishment Instructions of either Boeing Special Attention 
Service Bulletin 777-78-0071, Revision 2, dated July 23, 2013; or 
Boeing Service Bulletin 777-78-0082, Revision 1, dated June 15, 
2015.
    (2) Modifying an engine in accordance with the Accomplishment 
Instructions of Rolls-Royce Service Bulletin RR.211-71-H824, dated 
July 30, 2014.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle ACO Branch, FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request 
to your principal inspector or local Flight Standards District 
Office, as appropriate. If sending information directly to the 
manager of the ACO, send it to the attention of the person 
identified in paragraph (k)(1) of this AD. Information may be 
emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Seattle ACO Branch, FAA, to make those findings. To be 
approved, the repair method, modification deviation, or alteration 
deviation must meet the certification basis of the airplane, and the 
approval must specifically refer to this AD.

(k) Related Information

    (1) For more information about this AD, contact Kevin Nguyen, 
Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 
2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-
3555; email: [email protected].
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (l)(3) and (l)(4) of this AD.

(l) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Boeing Service Bulletin 777-78-0082, Revision 1, dated June 
15, 2015.
    (ii) Boeing Special Attention Service Bulletin 777-78-0071, 
Revision 2, dated July 23, 2013.
    (iii) Rolls-Royce Service Bulletin RR.211-71-H824, dated July 
30, 2014.
    (3) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Contractual & Data Services 
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; internet https://www.myboeingfleet.com.
    (4) You may view this service information at the FAA, Transport 
Standards Branch, 2200 South 216th St., Des Moines, WA. For 
information on the availability of this material at the FAA, call 
206-231-3195.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Des Moines, Washington, on November 29, 2018.
James Cashdollar,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-26532 Filed 12-13-18; 8:45 am]
 BILLING CODE 4910-13-P



                                                            Federal Register / Vol. 83, No. 240 / Friday, December 14, 2018 / Rules and Regulations                                        64233

                                           (d) Subject                                             approval of an AMOC, provided the                     DEPARTMENT OF TRANSPORTATION
                                             Air Transport Association (ATA) of                    procedures and tests identified as RC can be
                                           America Code 53, Fuselage; 55, Stabilizers.             done and the airplane can be put back in an           Federal Aviation Administration
                                                                                                   airworthy condition. Any substitutions or
                                           (e) Reason
                                                                                                   changes to procedures or tests identified as          14 CFR Part 39
                                              This AD was prompted by a determination              RC require approval of an AMOC.
                                           that the section 19 holes for the vertical tail                                                               [Docket No. FAA–2017–0246; Product
                                           plane (VTP) tension bolts connection are not            (j) Related Information                               Identifier 2017–NM–011–AD; Amendment
                                           properly protected against corrosion. We are                                                                  39–19522; AD 2018–25–11]
                                                                                                     For more information about this AD,
                                           issuing this AD to address corrosion of the             contact Kathleen Arrigotti, Aerospace                 RIN 2120–AA64
                                           VTP tension bolts connection, which could
                                                                                                   Engineer, International Section, Transport
                                           reduce the structural integrity of the VTP,                                                                   Airworthiness Directives; The Boeing
                                           and could ultimately lead to reduced                    Standards Branch, FAA, 2200 South 216th
                                           controllability of the airplane.                        St., Des Moines, WA 98198; telephone and              Company Airplanes
                                                                                                   fax 206–231–3218.
                                           (f) Compliance                                                                                                AGENCY:  Federal Aviation
                                              Comply with this AD within the
                                                                                                   (k) Material Incorporated by Reference                Administration (FAA), DOT.
                                           compliance times specified, unless already                 (1) The Director of the Federal Register           ACTION: Final rule.
                                           done.                                                   approved the incorporation by reference
                                                                                                   (IBR) of the service information listed in this       SUMMARY:    We are adopting a new
                                           (g) Requirements                                                                                              airworthiness directive (AD) for certain
                                                                                                   paragraph under 5 U.S.C. 552(a) and 1 CFR
                                              Except as specified by paragraph (h) of this         part 51.                                              The Boeing Company Model 777–200
                                           AD: Comply with all required actions and                                                                      and –300 series airplanes equipped with
                                                                                                      (2) You must use this service information
                                           compliance times specified in, and in                                                                         Rolls-Royce Model RB211-Trent 800
                                           accordance with, EASA AD 2018–0045.                     as applicable to do the actions required by
                                                                                                   this AD, unless this AD specifies otherwise.          engines. This AD was prompted by
                                           (h) Exceptions to EASA AD 2018–0045                        (i) European Aviation Safety Agency                reports of inadequate clearance between
                                              (1) For purposes of determining                      (EASA) AD 2018–0045, dated February 15,               the thermal protection system (TPS)
                                           compliance with the requirements of this AD,            2018; corrected February 22, 2018.                    insulation blankets and the electronic
                                           where EASA AD 2018–0045 refers to its                      (ii) [Reserved]                                    engine control (EEC) wiring, which
                                           effective date, this AD requires using the                 (3) For EASA AD 2018–0045, contact                 resulted in damaged wires. This AD
                                           effective date of this AD.                              EASA, Konrad-Adenauer-Ufer 3, 50668                   requires repetitive inspections of the
                                              (2) The ‘‘Remarks’’ section of EASA AD               Cologne, Germany; telephone +49 221 89990             EEC wire bundles and clips, and
                                           2018–0045 does not apply to this AD.                                                                          corrective actions if necessary. We are
                                                                                                   6017; email ADs@easa.europa.eu; Internet
                                           (i) Other FAA AD Provisions                             www.easa.europa.eu. You may find this                 issuing this AD to address the unsafe
                                              The following provisions also apply to this          EASA AD on the EASA website at https://               condition on these products.
                                           AD:                                                     ad.easa.europa.eu. You may view this EASA             DATES: This AD is effective January 18,
                                              (1) Alternative Methods of Compliance                AD at the FAA, Transport Standards Branch,            2019.
                                           (AMOCs): The Manager, International                     2200 South 216th St., Des Moines, WA. For                The Director of the Federal Register
                                           Section, Transport Standards Branch, FAA,               information on the availability of this               approved the incorporation by reference
                                           has the authority to approve AMOCs for this             material at the FAA, call 206–231–3195.
                                           AD, if requested using the procedures found
                                                                                                                                                         of a certain publication listed in this AD
                                                                                                   EASA AD 2018–0045 may be found in the                 as of January 18, 2019.
                                           in 14 CFR 39.19. In accordance with 14 CFR              AD docket on the internet at http://
                                           39.19, send your request to your principal                                                                    ADDRESSES: For service information
                                                                                                   www.regulations.gov by searching for and
                                           inspector or local Flight Standards District                                                                  identified in this final rule, contact
                                           Office, as appropriate. If sending information          locating Docket No. FAA–2018–0791.
                                                                                                      (4) You may view this service information          Boeing Commercial Airplanes,
                                           directly to the International Section, send it                                                                Attention: Contractual & Data Services
                                           to the attention of the person identified in            at the FAA, Transport Standards Branch,
                                                                                                   2200 South 216th St., Des Moines, WA. For             (C&DS), 2600 Westminster Blvd., MC
                                           paragraph (j) of this AD. Information may be
                                           emailed to: 9-ANM-116-AMOC-REQUESTS@                    information on the availability of this               110–SK57, Seal Beach, CA 90740–5600;
                                           faa.gov. Before using any approved AMOC,                material at the FAA, call 206–231–3195.               telephone 562–797–1717; internet
                                           notify your appropriate principal inspector,               (5) You may view this service information          https://www.myboeingfleet.com. You
                                           or lacking a principal inspector, the manager           that is incorporated by reference at the              may view this service information at the
                                           of the local flight standards district office/          National Archives and Records                         FAA, Transport Standards Branch, 2200
                                           certificate holding district office.                    Administration (NARA). For information on             South 216th St., Des Moines, WA. For
                                              (2) Contacting the Manufacturer: For any                                                                   information on the availability of this
                                                                                                   the availability of this material at NARA, call
                                           requirement in this AD to obtain instructions                                                                 material at the FAA, call 206–231–3195.
                                                                                                   202–741–6030, or go to: http://
                                           from a manufacturer, the instructions must                                                                    It is also available on the internet at
                                           be accomplished using a method approved                 www.archives.gov/federal-register/cfr/ibr-
                                           by the Manager, International Section,                  locations.html.                                       http://www.regulations.gov by searching
                                           Transport Standards Branch, FAA; or EASA;                                                                     for and locating Docket No. FAA–2017–
                                                                                                     Issued in Des Moines, Washington, on
                                           or Airbus SAS’s EASA Design Organization                                                                      0246.
                                                                                                   November 29, 2018.
                                           Approval (DOA). If approved by the DOA,                                                                       Examining the AD Docket
                                           the approval must include the DOA-                      James Cashdollar,
                                           authorized signature.                                   Acting Director, System Oversight Division,             You may examine the AD docket on
                                              (3) Required for Compliance (RC): Any RC             Aircraft Certification Service.                       the internet at http://
                                           procedures and tests identified in the service          [FR Doc. 2018–26536 Filed 12–13–18; 8:45 am]          www.regulations.gov by searching for
                                           information referenced in EASA AD 2018–                                                                       and locating Docket No. FAA–2017–
amozie on DSK3GDR082PROD with RULES




                                                                                                   BILLING CODE 4910–13–P
                                           0045 must be done to comply with this AD;                                                                     0246; or in person at Docket Operations
                                           any procedures or tests that are not identified
                                           as RC are recommended. Those procedures
                                                                                                                                                         between 9 a.m. and 5 p.m., Monday
                                           and tests that are not identified as RC may                                                                   through Friday, except Federal holidays.
                                           be deviated from using accepted methods in                                                                    The AD docket contains this final rule,
                                           accordance with the operator’s maintenance                                                                    the regulatory evaluation, any
                                           or inspection program without obtaining                                                                       comments received, and other


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                                           64234            Federal Register / Vol. 83, No. 240 / Friday, December 14, 2018 / Rules and Regulations

                                           information. The address for Docket                     Boeing Special Attention Service                      777–78–0082, Revision 1, dated June 15,
                                           Operations (phone: 800–647–5527) is                     Bulletin 777–78–0071; or Boeing                       2015, contains detailed inspection
                                           Docket Operations, U.S. Department of                   Service Bulletin 777–78–0082.                         requirements and instructions that are
                                           Transportation, Docket Operations, M–                      American Airlines (AAL) explained                  applicable to engine configurations that
                                           30, West Building Ground Floor, Room                    that Boeing Service Bulletin 777–78–                  either have or have not incorporated
                                           W12–140, 1200 New Jersey Avenue SE,                     0082, Revision 1, dated June 15, 2015,                Rolls-Royce Service Bulletin RR.211–
                                           Washington, DC 20590.                                   is not effective to its fleet configuration           71–H824, dated July 30, 2014. As a
                                           FOR FURTHER INFORMATION CONTACT:                        and requested that paragraph (g) of the               result, the EEC wire bundle inspections
                                           Kevin Nguyen, Aerospace Engineer,                       proposed AD be revised to include                     specified by Boeing Service Bulletin
                                           Propulsion Section, FAA, Seattle ACO                    Boeing Special Attention Service                      777–78–0082, Revision 1, dated June 15,
                                           Branch, 2200 South 216th St., Des                       Bulletin 777–78–0071, Revision 2, dated               2015, are applicable to the ANZ, AAL,
                                           Moines, WA 98198; phone and fax: 206–                   July 23, 2013, as an additional method                and DAL fleet configurations that are
                                           231–3555; email: kevin.nguyen@faa.gov.                  of compliance for those airplanes that                identified in Boeing Special Attention
                                           SUPPLEMENTARY INFORMATION:                              are identified in Boeing Special                      Service Bulletin 777–78–0071, Revision
                                                                                                   Attention Service Bulletin 777–78–                    2, dated July 23, 2013.
                                           Discussion                                              0071, Revision 2, dated July 23, 2013,                   Consistent with the requirements of
                                             We issued a notice of proposed                        but not affected by Boeing Service                    paragraph (k) of AD 2016–11–16, we
                                           rulemaking (NPRM) to amend 14 CFR                       Bulletin 777–78–0082, Revision 1, dated               determined that a general visual
                                           part 39 by adding an AD that would                      June 15, 2015. AAL also provided the                  inspection as specified in Boeing
                                           apply to certain The Boeing Company                     definitions for a general visual                      Special Attention Service Bulletin 777–
                                           Model 777–200 and –300 series                           inspection and detailed inspection from               78–0071, Revision 2, dated July 23,
                                           airplanes equipped with Rolls-Royce                     Boeing Special Attention Service                      2013; and Boeing Service Bulletin 777–
                                           Model RB211-Trent 800 engines. The                      Bulletin 777–78–0071, Revision 2, dated               78–0082, dated November 9, 2011;
                                           NPRM published in the Federal                           July 23, 2013, to support its justification           accomplished prior to the effective date
                                           Register on April 10, 2017 (82 FR                       that a general visual inspection would                of this AD is acceptable when looking
                                           17154). The NPRM was prompted by                        identify damage to components within                  for damage of the EEC wire bundle and
                                           reports of inadequate clearance between                 the inspection area identified in the                 clips. On or after the effective date of
                                           the TPS insulation blankets and the EEC                 service information and therefore offers              this AD, a detailed inspection is
                                           wiring, which resulted in damaged                       an equivalent level of safety to that of              required as specified in Boeing Service
                                           wires. The NPRM proposed to require                     a detailed inspection.                                Bulletin 777–78–0082, Revision 1, dated
                                           repetitive inspections of the EEC wire                     Delta Air Lines (DAL) explained that               June 15, 2015. We have not changed the
                                           bundles and clips, and corrective                       Boeing Service Bulletin 777–78–0082,                  AD in this regard.
                                           actions if necessary.                                   Revision 1, dated June 15, 2015, is not
                                                                                                   applicable to all the T/Rs affected by the            Request To Clarify Paragraph (c)
                                             We are issuing this AD to address                                                                           Applicability of the Proposed AD
                                           damaged wires, which could result in                    proposed AD, and suggested that
                                           in-flight shutdown of the engine, or the                paragraph (g) of the proposed AD follow                 DAL found the ‘‘and/or’’ construction
                                           inability to properly control thrust, and               the same structure as AD 2016–11–16,                  of paragraphs (c)(1) and (c)(2) of the
                                           consequent reduced controllability of                   Amendment 39–18543 (81 FR 39547,                      proposed AD confusing, and requested
                                           the airplane.                                           June 17, 2016) (‘‘AD 2016–11–16’’),                   clarification regarding the applicability
                                                                                                   which allows for the use of Boeing                    of airplanes that meet one of the two
                                           Comments                                                Special Attention Service Bulletin 777–               conditions or both conditions specified
                                             We gave the public the opportunity to                 78–0071, Revision 2, dated July 23,                   in paragraphs (c)(1) and (c)(2) of the
                                           participate in developing this final rule.              2013, in paragraph (k)(1) of AD 2016–                 proposed AD.
                                           The following presents the comments                     11–16 or Boeing Service Bulletin 777–                   We agree with DAL’s request to clarify
                                           received on the NPRM and the FAA’s                      78–0082, Revision 1, dated June 15,                   the applicability of this AD. We have
                                           response to each comment.                               2015, in paragraph (k)(2) of AD 2016–                 revised paragraph (c) of this AD to
                                                                                                   11–16, according to airplane effectivity.             include airplanes that have incorporated
                                           Support for the Proposed Rule                           DAL observed that the referenced                      Boeing Alert Service Bulletin 777–
                                             The Air Line Pilots Association,                      service information was acknowledged                  78A0094, dated July 29, 2014, and the
                                           International (ALPA), Boeing, and Rolls-                in AD 2016–11–16 to provide the same                  condition specified in paragraph (c)(1)
                                           Royce all supported the NPRM.                           acceptable level of safety, and DAL                   or (c)(2) of this AD is met on any engine,
                                                                                                   would prefer that either service bulletin             or both conditions specified in (c)(1)
                                           Request To Include Additional Service
                                                                                                   be allowed as an acceptable method of                 and (c)(2) of this AD are met on any
                                           Information                                             compliance for the inspections required               engine.
                                             Air New Zealand (ANZ) suggested                       by paragraph (g) of this AD.
                                           that paragraph (g) of the proposed AD                      We do not agree with the commenter’s               Request To Clarify the Intent of the
                                           could be complied with using either                     request to include additional service                 Proposed AD
                                           Boeing Special Attention Service                        information as an additional method of                  DAL requested that we clarify that the
                                           Bulletin 777–78–0071; or Boeing                         compliance for the inspections required               intent of the proposed AD is to maintain
                                           Service Bulletin 777–78–0082; because                   by paragraph (g) of this AD. Boeing                   the EEC wire bundles inspections
                                           certain configurations of thrust reversers              Special Attention Service Bulletin 777–               described in paragraph (k) of AD 2016–
                                           (T/Rs) are not covered by Boeing Service                78–0071, Revision 2, dated July 23,                   11–16 until all three of the following
                                           Bulletin 777–78–0082, but are covered                   2013; and Boeing Service Bulletin 777–                terminating actions have been
amozie on DSK3GDR082PROD with RULES




                                           by Boeing Special Attention Service                     78–0082, dated November 9, 2011; do                   completed: (1) Incorporating Boeing
                                           Bulletin 777–78–0071. ANZ noted that                    not provide inspection requirements for               Alert Service Bulletin 777–78A0094,
                                           paragraph (h) of the proposed AD                        engine configurations that have                       dated July 29, 2014; (2) incorporating
                                           provided credit for previous actions if                 incorporated Rolls-Royce Service                      Work Package 7 of Boeing Special
                                           the previous inspections were                           Bulletin RR.211–71–H824, dated July                   Attention Service Bulletin 777–78–
                                           performed in accordance with either                     30, 2014. Only Boeing Service Bulletin                0071, Revision 2, dated July 23, 2013; or


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                                                            Federal Register / Vol. 83, No. 240 / Friday, December 14, 2018 / Rules and Regulations                                       64235

                                           Part 8 or Part 9 of Boeing Service                      0071, Revision 2, dated July 23, 2013, to             Boeing Service Bulletin 777–78–0082,
                                           Bulletin 777–78–0082, Revision 1, dated                 replace original P/N 315W5115–2, –6, or               Revision 1, dated June 15, 2015.
                                           June 15, 2015; as applicable; and (3)                   –20 non-re-contoured insulation                          AAL pointed out that the insulation
                                           incorporating Rolls-Royce Service                       blankets that caused the initial potential            blankets have repetitive airworthiness
                                           Bulletin RR.211–71–H824, dated July                     EEC wire bundle and clip frettage                     limitation inspection requirements as
                                           30, 2014.                                               condition. AAL noted that the optional                specified by Boeing Maintenance
                                             We agree to clarify that the intent of                re-contoured insulation blankets were                 Planning Document (MPD) D622W001–
                                           this AD is to maintain the EEC wire                     designed with the addition of rulon                   9, Section 9, Airworthiness Limitations
                                           bundles repetitive inspections described                frettage protection on the insulation                 (AWLs) and Certification Maintenance
                                           in paragraph (k) of AD 2016–11–16 for                   blanket face sheet to prevent potential               Requirements (CMRs), Airworthiness
                                           certain airplanes. The repetitive                       EEC wire bundle and clip frettage at the              Limitation Item (ALI) 78–AWL–01 that
                                           inspections required by paragraph (g) of                inspection area of paragraph (g) of the               maintain the blanket rulon material
                                           this AD are no longer required after re-                proposed AD. AAL stated that the                      condition. AAL noted that T/Rs that
                                           contoured insulation blankets part                      installation of the re-contoured                      incorporate Work Package 7 of Boeing
                                           numbers (P/N) 315W5115–60, –62, and                     insulation blankets therefore provides                Special Attention Service Bulletin 777–
                                           –64 are installed on the right T/R half                 an equivalent level of safety to the                  78–0071, Revision 2, dated July 23,
                                           by accomplishing either Boeing Special                  repetitive EEC wire bundle and clip                   2013, for installing re-contoured
                                           Attention Service Bulletin 777–78–                      inspections.                                          insulation blankets no longer have a T/
                                           0071, Revision 2, dated July 23, 2013; or                  AAL reasoned that Rolls-Royce                      R configuration specified by Boeing
                                           Boeing Service Bulletin 777–78–0082,                    Service Bulletin RR.211–71–H824,                      Special Attention Service Bulletin 777–
                                           Revision 1, dated June 15, 2015; and the                dated July 30, 2014, changes the EEC                  78–0071, dated November 25, 2009; or
                                           EEC wire bundle and clip are re-routed                  wire bundle routing to provide                        Boeing Special Attention Service
                                           on the engine by accomplishing Rolls-                   additional clearance with the T/R non-                Bulletin 777–78–0071, Revision 1, dated
                                           Royce Service Bulletin RR.211–71–                       re-contoured insulation blankets to                   September 8, 2010; and are not
                                           H824, dated July 30, 2014. No change to                 eliminate the potential frettage in the               applicable to the EEC wire bundle and
                                           this AD is needed in this regard.                       area of inspection as specified in                    clip inspection as specified in Work
                                                                                                   paragraph (g) of the proposed AD and                  Package 6 of Boeing Special Attention
                                           Request To Revise Paragraph (c)
                                                                                                   provides an equivalent level of safety to             Service Bulletin 777–78–0071, Revision
                                           Applicability of the Proposed AD                                                                              2, dated July 23, 2013.
                                                                                                   the repetitive EEC wire bundle and clip
                                              AAL requested that paragraph (c) of                                                                           AAL also noted that Rolls-Royce
                                                                                                   inspections. AAL added that any
                                           the proposed AD be revised to exclude                                                                         Model RB211-Trent 800 engine EEC
                                                                                                   existing harness damage will be or has
                                           airplanes with the following                                                                                  wire runs already receive repetitive
                                                                                                   been addressed during incorporation of
                                           configuration combinations from the                                                                           zonal general visual inspections as
                                                                                                   this service bulletin during an engine
                                           applicability of paragraph (g) of the                                                                         specified by Boeing MPD D622W001,
                                                                                                   shop visit.
                                           proposed AD:                                                                                                  Section 3, Zonal Inspection Program,
                                              • Engines with or without                               We agree to clarify. We have                       item 71–864–01 and item 71–878–02,
                                           incorporation of Rolls-Royce Service                    determined that after accomplishing the               and receive repetitive detailed
                                           Bulletin RR.211–71–H824, dated July                     work instructions in Boeing Alert                     inspections as specified by Boeing MPD
                                           30, 2014; T/R halves that incorporated                  Service Bulletin 777–78A0094, dated                   D622W001, Section 1, System
                                           Boeing Alert Service Bulletin 777–                      July 29, 2014, there is still not sufficient          Maintenance Program, item 20–540–01
                                           78A0094, dated July 29, 2014; installed                 clearance between the insulation                      and item 20–540–02, as part of a
                                           re-contoured insulation blankets (P/N                   blankets and EEC wire bundle W0800                    Lightning/High Intensity Radiated
                                           315W5115–60, –62, and –64 for the                       and its associated clip. The EEC wire                 Fields maintenance program. AAL
                                           right half and P/N 315W5115–63, –59,                    bundle and clip could still be damaged                stated that these inspections are
                                           and –61 for the left half) by                           from making contact with insulation                   regulated by the 14 CFR 121.1111
                                           incorporating Work Package 7 of Boeing                  blankets when one or both of the                      required electrical wiring
                                           Special Attention Service Bulletin 777–                 following conditions exist:                           interconnection systems (EWIS)
                                           78–0071, Revision 2, dated July 23,                        • The EEC wire and clip are not re-                maintenance program requirements.
                                           2013; and accomplishment of EEC wire                    routed on the engine (did not                            In regards to AAL’s reference to
                                           bundle and clip inspection using Work                   incorporate Rolls-Royce Service Bulletin              Boeing MPD D622W001–9, Section 9,
                                           Package 6 of Boeing Special Attention                   RR.211–71–H824, dated July 30, 2014);                 AWLs and CMRs, ALI 78–AWL–01, we
                                           Service Bulletin 777–78–0071, Revision                  or                                                    note that Boeing MPD D622W001–9,
                                           2, dated July 23, 2013, when that T/R                      • Non-re-contoured insulation                      Section 9, AWLs and CMRs, ALI 78–
                                           was installed.                                          blankets (P/N 315W5115–2, –6, and                     AWL–01 has requirements to inspect
                                              • Engines with incorporation of Rolls-               –20) are installed on the right T/R half.             the insulation blankets for damage, but
                                           Royce Service Bulletin RR.211–71–                          We have determined that in order to                it does not directly inspect the EEC wire
                                           H824, dated July 30, 2014, regardless of                have proper clearance between the                     bundle and clip for damage. The intent
                                           T/R half insulation blanket standards                   insulation blankets and the EEC wiring,               of this AD is to specifically inspect the
                                           (re-contoured or non-re-contoured                       and to prevent damage, Rolls-Royce                    EEC wire bundle and clip for damage.
                                           insulation blankets).                                   Service Bulletin RR.211–71–H824,                      We agree with AAL’s justification that
                                              AAL provided the following                           dated July 30, 2014, must be                          T/Rs with re-contoured insulation
                                           justifications for their request. We have               incorporated to re-route the EEC wire                 blankets installed no longer have a T/R
                                           included our response to those                          bundle and clip on the engine; and re-                configuration as specified by Boeing
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                                           justifications.                                         contoured insulation blankets P/N                     Special Attention Service Bulletin 777–
                                              AAL explained that insulation blanket                315W5115–60, –62, and –64 must be                     78–0071, November 25, 2009; or Boeing
                                           P/N 315W5115–60, –62, and –64 are                       installed on the right T/R half by                    Special Attention Service Bulletin 777–
                                           optional re-contoured insulation                        accomplishing either Boeing Special                   78–0071, Revision 1, dated September 8,
                                           blankets introduced by Boeing Special                   Attention Service Bulletin 777–78–                    2010. Boeing Special Attention Service
                                           Attention Service Bulletin 777–78–                      0071, Revision 2, dated July 23, 2013; or             Bulletin 777–78–0071, Revision 2, dated


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                                           64236            Federal Register / Vol. 83, No. 240 / Friday, December 14, 2018 / Rules and Regulations

                                           July 23, 2013, does not have clear                      2,000 flight-hour repetitive inspection               Service Bulletin 777–78–0071, Revision
                                           information and instructions to do a                    interval specified in paragraph (g) of                2, dated July 23, 2013.
                                           detailed EEC inspection for T/R halves                  this AD, and they can be escalated to a                  We do not agree with the commenter’s
                                           with re-contoured blankets. However, as                 longer interval without FAA ACO                       request because we have determined
                                           explained by Boeing and Boeing Service                  Branch approval. In accordance with 14                that both the EEC wiring modification
                                           Bulletin 777–78–0082, Revision 1, dated                 CFR part 39 (§ 39.5 and § 39.13), this AD             specified in Rolls-Royce Service
                                           June 15, 2015, instructions, and                        is issued to address the unsafe condition             Bulletin RR.211–71–H824, dated July
                                           reinforced by the requirements in this                  identified in paragraph (e) of this AD.               30, 2014, and installation of the re-
                                           AD, EEC wire bundles and clips are to                      Therefore, we do not agree to revise               contoured insulation blankets specified
                                           be inspected when one or both of the                    paragraph (c) of this AD as proposed by               in Work Package 7 of Boeing Special
                                           previously described conditions exists                  the commenter. We did not change the                  Attention Service Bulletin 777–78–
                                           where the EEC wire bundle and clip                      AD in this regard.                                    0071, Revision 2, dated July 23, 2013,
                                           could still be damaged from making                                                                            are necessary to prevent the chafing
                                                                                                   Request To Include Terminating Action
                                           contact with insulation blankets. We                                                                          condition that is the subject of this AD.
                                           note that this AD mandates the use of                     DAL requested that we include                       In the absence of both of those
                                           Boeing Service Bulletin 777–78–0082,                    terminating action for airplanes that                 modifications, we have determined that
                                           Revision 1, dated June 15, 2015, to do                  accomplish the modification in                        a 2,000 flight hour inspection interval is
                                           the EEC wire bundle and clip detailed                   paragraphs (c)(1) and (c)(2) of the                   necessary. The 500 flight hours is meant
                                           inspections, which is applicable to                     proposed AD. DAL explained that                       to be a grace period for those airplanes
                                           airplanes in a configuration specified in               paragraph (c) of the proposed AD states               on which the interval has lapsed (due to
                                           Boeing Special Attention Service                        that if airplanes with Rolls-Royce                    inspections being terminated in AD
                                                                                                   engines, which have accomplished the                  2016–11–16), as well as airplanes that
                                           Bulletin 777–78–0071, Revision 2, dated
                                                                                                   action in Boeing Alert Service Bulletin               are nearing the end of the inspection
                                           July 23, 2013.
                                                                                                   777–78A0094, dated July 29, 2014, have                interval. AAL did not provide adequate
                                              We infer that AAL is suggesting that                 neither the condition in paragraph (c)(1)             justification for a longer grace period.
                                           the existing inspections in Boeing MPD                  of the proposed AD nor the condition in               We did not change this AD in this
                                           D622W001, Section 3, Zonal Inspection                   paragraph (c)(2) of the proposed AD,                  regard.
                                           Program, item 71–864–01 and item 71–                    that the rule is not applicable. DAL
                                           878–02, and detailed inspections in                     noted that there is no terminating action             Request To Clarify the Requirements of
                                           Boeing MPD D622W001, Section 1,                         paragraph in the proposed AD.                         Paragraph (g) of the Proposed AD for a
                                           System Maintenance Program, item 20–                      We agree to clarify the requirements                Certain Repaired Wire Condition
                                           540–01 and item 20–540–02 provide an                    of this AD. As discussed in the above                    For engines which require inspections
                                           equivalent level of safety to the                       comments: For any affected airplane on                as specified in paragraph (g) of this AD,
                                           repetitive wire bundle and clip                         which the modification specified in                   AAL requested clarification that the
                                           inspections. We disagree with that                      paragraph (c)(2) of this AD, and the                  inspection of the wire bundle can be
                                           suggestion. We note that part of the                    replacement of all affected parts (non-re-            accomplished without removal of any
                                           EWIS maintenance program                                contoured insulation blankets)                        harness polytetrafluoroethylene (PTFE)
                                           requirement for operators is to maintain                identified in paragraph (c)(1) of this AD             tape protection applied to the wire
                                           continued airworthiness of the electrical               with non-affected parts (re-contoured                 bundle, provided that the PTFE tape
                                           wiring interconnection systems on the                   insulation blankets) have been                        protection is not damaged, and provided
                                           airplane, including the engine. The                     accomplished on both engines, that                    the wire bundle had received an
                                           EWIS maintenance program                                airplane is no longer affected by this                inspection and was repaired if damaged
                                           requirement is based on the assumption                  AD. For clarity, we have added                        prior to application of the protective
                                           that the type design is compliant and is                paragraph (i) to this AD to specify                   tape wrap. AAL explained that it had
                                           not expected to create wiring problems                  terminating actions for the repetitive                already identified the potential wire
                                           if the original configuration is                        inspections required by paragraph (g) of              bundle interference condition through
                                           maintained. This AD was proposed                        this AD and redesignated subsequent                   its continuous airworthiness
                                           because the existing design was found                   paragraphs accordingly.                               maintenance program (CAMP) prior to
                                           to have details that are expected to lead                                                                     release of Boeing Special Attention
                                           to a wiring chafing problem on at least                 Request To Extend the Compliance                      Service Bulletin 777–78–0071, Revision
                                           some airplanes. Therefore, we                           Time                                                  2, dated July 23, 2013. As a result, AAL
                                           determined that more frequent and                          AAL requested that for engines that                accomplished a fleet-wide general
                                           detailed inspections are necessary to                   have not incorporated Rolls-Royce                     visual inspection of the EEC wire
                                           address this unsafe condition. The                      Service Bulletin RR.211–71–H824,                      bundle W0800 for damage in the
                                           inspections in Boeing MPD D622W001,                     dated July 30, 2014, the inspection                   inspection area, accomplished any
                                           Section 3, Zonal Inspection Program,                    required by paragraph (g) of this AD be               required repairs, and then wrapped the
                                           item 71–864–01 and item 71–878–02;                      required within 2,000 flight hours,                   W0800 harness with PTFE tape in
                                           and Boeing MPD D622W001, Section 1,                     rather than 500 flight hours, after the               accordance with the approved
                                           System Maintenance Program, item 20–                    effective date of the AD, if re-contoured             procedures in its CAMP.
                                           540–01 and item 20–540–02; are not                      insulation blankets (P/N 315W5115–60,                    We do not agree with the commenter’s
                                           sufficient to address the identified                    –62, –64) were installed on the T/R by                request because we do not have
                                           unsafe condition of this AD. The                        Work Package 7 of Boeing Special                      sufficient information in the AAL
                                           repetitive inspection intervals for                     Attention Service Bulletin 777–78–                    request to clarify nor expand paragraph
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                                           Boeing MPD D622W001, Section 1,                         0071, Revision 2, dated July 23, 2013,                (g) of this AD for wire bundles that have
                                           System Maintenance Program, item 20–                    and, during installation of the insulation            been modified by AAL’s CAMP. We do
                                           540–01 and item 20–540–02; and Boeing                   blanket on the T/R halves, the EEC wire               not consider it appropriate to include
                                           MPD D622W001, Section 3, Zonal                          bundle inspection was accomplished on                 various provisions in an AD applicable
                                           Inspection Program, item 71–864–01                      the engine in accordance with Work                    only to individual airplane
                                           and item 71–878–02; are longer than the                 Package 6 of Boeing Special Attention                 configurations or to a single operator’s


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                                                            Federal Register / Vol. 83, No. 240 / Friday, December 14, 2018 / Rules and Regulations                                         64237

                                           unique use of an affected airplane.                     2016–11–16 pertains to the EEC wire                   provisions of the Administrative
                                           However, AAL and others may request                     bundle inspections that are described in              Procedure Act) reissuing the notice,
                                           an alternative method of compliance                     the ‘‘Discussion’’ section of the                     reopening the period for public
                                           (AMOC) in accordance with the                           proposed rule. DAL stated that                        comment, considering additional
                                           procedures specified in paragraph (j) of                paragraph (q) of AD 2016–11–16                        comments subsequently received, and
                                           this AD, provided sufficient data are                   describes accomplishments that are                    eventually issuing a final rule. In light
                                           submitted to substantiate that the                      terminating actions to AD 2005–07–24,                 of this, and in consideration of the
                                           AMOC would provide an acceptable                        which include the EEC wire bundle                     unsafe condition, we have determined
                                           level of safety. We did not change this                 inspections as described in paragraph                 that further delay of this AD is not
                                           AD in this regard.                                      (k) of AD 2016–11–16. DAL contended                   appropriate. We have not changed this
                                                                                                   that the proposed rule reinstates these               AD in this regard.
                                           Request To Clarify Requirements of
                                                                                                   inspections and therefore affects the
                                           Paragraph (g) of the Proposed AD for                                                                          Conclusion
                                                                                                   requirements of AD 2005–07–24 as
                                           Engine Inspection in the Shop
                                                                                                   described in paragraph (q) of AD 2016–                   We reviewed the relevant data,
                                              AAL requested clarification to                       11–16.                                                considered the comments received, and
                                           paragraph (g) of the proposed AD to                       We do not agree with the commenter’s                determined that air safety and the
                                           confirm that after the effective date of                request because this AD is a stand-alone              public interest require adopting this
                                           this AD, installation of an engine that                 AD and does not impact nor change the                 final rule with the change described
                                           had a shop visit meets the requirements                 requirements of AD 2005–07–24 or AD                   previously and minor editorial changes.
                                           of an inspection, and in that case, that                2016–11–16. The T/R inner wall and                    We have determined that these minor
                                           the next inspection is required within                  TPS configuration, and certain engine                 changes:
                                           2,000 hours of engine installation.                     configurations affected by the actions in
                                              We agree to clarify paragraph (g) of                                                                          • Are consistent with the intent that
                                                                                                   this AD are not configurations affected
                                           this AD. If, during a shop visit, an EEC                                                                      was proposed in the NPRM for
                                                                                                   by AD 2005–07–24 or AD 2016–11–16.
                                           wire bundle and clamp inspection was                                                                          addressing the unsafe condition; and
                                                                                                   This AD is only applicable to airplanes
                                           done as specified in Boeing Special                     with certain T/R halves on which the                     • Do not add any additional burden
                                           Attention Service Bulletin 777–78–                      actions in Boeing Alert Service Bulletin              upon the public than was already
                                           0071, Revision 2, dated July 23, 2013; or               777–78A0094, dated July 29, 2014, have                proposed in the NPRM.
                                           Boeing Service Bulletin 777–78–0082,                    been accomplished, and the condition                     We also determined that these
                                           dated November 9, 2011; or Boeing                       specified in paragraph (c)(1) or (c)(2) of            changes will not increase the economic
                                           Service Bulletin 777–78–0082, Revision                  this AD is met on any engine, or both                 burden on any operator or increase the
                                           1, dated June 15, 2015; then the next                   conditions specified in (c)(1) and (c)(2)             scope of this final rule.
                                           inspection can be done within 2,000                     of this AD are met on any engine. This
                                           flight hours from the last inspection                                                                         Related Service Information Under 1
                                                                                                   AD is not applicable to airplanes with
                                           done in the shop. However, if an                                                                              CFR Part 51
                                                                                                   T/R halves of certain inner wall and
                                           inspection other than the one specified                 TPS configurations specified in AD                      We reviewed Boeing Service Bulletin
                                           in Boeing Special Attention Service                     2005–07–24 and AD 2016–11–16 on                       777–78–0082, Revision 1, dated June 15,
                                           Bulletin 777–78–0071, Revision 2, dated                 which the actions specified in Boeing                 2015. The service information describes,
                                           July 23, 2013; or Boeing Service Bulletin               Alert Service Bulletin 777–78A0094,                   among other things, procedures for
                                           777–78–0082, dated November 9, 2011;                    dated July 29, 2014, have not been                    repetitive inspections of the EEC wire
                                           or Boeing Service Bulletin 777–78–                      accomplished. Therefore, this AD has                  bundles and clips, and corrective
                                           0082, Revision 1, dated June 15, 2015;                  no direct relationship to and does not                actions if necessary.
                                           was done, operators must request an                     change the requirements of AD 2005–                     We also reviewed Boeing Special
                                           AMOC in accordance with the                             07–24 or AD 2016–11–16.                               Attention Service Bulletin 777–78–
                                           procedures specified in paragraph (j) of                  After accomplishing paragraph (l) of                0071, Revision 2, dated July 23, 2013.
                                           this AD. No change to this AD is                        AD 2016–11–16 to install serviceable                  This service information describes,
                                           needed.                                                 thrust reverser halves (by accomplishing              among other things, procedures for
                                                                                                   Boeing Alert Service Bulletin 777–                    installing re-contoured insulation
                                           Request To Modify Relationship to
                                                                                                   78A0094, dated July 29, 2014), and                    blankets on the right T/R halves and
                                           Affected ADs
                                                                                                   paragraph (n) of AD 2016–11–16 to                     performing an EEC wire bundle and clip
                                             DAL requested that AD 2005–07–24,                     revise the maintenance or inspection
                                           Amendment 39–14049 (70 FR 18285,                                                                              inspection.
                                                                                                   program, the repetitive inspection
                                           April 11, 2005) (‘‘AD 2005–07–24’’) and                 requirements of AD 2016–11–16 are                       We also reviewed Rolls-Royce Service
                                           AD 2016–11–16 be added to paragraph                     terminated. However, Boeing and the                   Bulletin RR.211–71–H824, dated July
                                           (b) of the proposed AD. DAL also                        FAA have determined that inadequate                   30, 2014. This service information
                                           requested that the proposed AD be                       clearance between the TPS non-re-                     describes procedures for modifying the
                                           incorporated as a revision to AD 2016–                  contoured insulation blankets and the                 engine by rerouting the EEC wire bundle
                                           11–16 or a supersedure to AD 2016–11–                   EEC wiring still exists after completing              and clip.
                                           16 in order to provide a clear                          the actions required by AD 2016–11–16,                  This service information is reasonably
                                           relationship between the actions                        which will result in damaged wires, and               available because the interested parties
                                           required. DAL observed that paragraph                   an unsafe condition still exists.                     have access to it through their normal
                                           (b) of the proposed AD states that no                     We have determined not to revise or                 course of business or by the means
                                           ADs are affected by this rule, but                      supersede AD 2016–11–16 because of                    identified in the ADDRESSES section.
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                                           paragraph (l) of AD 2016–11–16 states                   the high rate of inner wall failures and              Costs of Compliance
                                           that accomplishment of Boeing Alert                     the urgency of the safety issue. We have
                                           Service Bulletin 777–78A0094, dated                     also determined that the required                       We estimate that this AD affects 55
                                           July 29, 2014, will terminate paragraph                 actions must be accomplished to ensure                airplanes of U.S. registry. We estimate
                                           (k) of AD 2016–11–16. DAL also                          continued safety. Revising this AD as                 the following costs to comply with this
                                           submitted that paragraph (k) of AD                      requested would necessitate (under the                AD:


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                                           64238                Federal Register / Vol. 83, No. 240 / Friday, December 14, 2018 / Rules and Regulations

                                                                                                                  ESTIMATED COSTS
                                                Action                       Labor cost                       Parts cost                  Cost per product                         Cost on U.S. operators

                                           Inspection .......    Up to 6 work-hours × $85 per hour                         $0    Up to $510 per inspection cycle ....       Up to $28,050       per    inspection
                                                                  = $510 per inspection cycle.                                                                                cycle.



                                             We have received no definitive data                   do any necessary replacements that                         might need these repairs or
                                           that would enable us to provide cost                    would be required based on the results                     replacements:
                                           estimates for the repairs specified in this             of the inspection. We have no way of
                                           AD. We estimate the following costs to                  determining the number of aircraft that

                                                                                                                ON-CONDITION COSTS
                                                                                                                                                                                                      Cost per
                                                                      Action                                                          Labor cost                                  Parts cost          product

                                           Replacement of EEC wire harness ..............................    1 work-hour × $85 per hour = $85 ...............................          $8,500             $8,585



                                              According to the manufacturer, some                  Regulatory Findings                                        2018–25–11 The Boeing Company:
                                           of the costs of this AD may be covered                                                                                 Amendment 39–19522; Docket No.
                                                                                                     This AD will not have federalism                             FAA–2017–0246; Product Identifier
                                           under warranty, thereby reducing the
                                                                                                   implications under Executive Order                             2017–NM–011–AD.
                                           cost impact on affected individuals. We
                                                                                                   13132. This AD will not have a
                                           do not control warranty coverage for                                                                               (a) Effective Date
                                                                                                   substantial direct effect on the States, on
                                           affected individuals. As a result, we
                                                                                                   the relationship between the national                         This AD is effective January 18, 2019.
                                           have included all costs in our cost
                                                                                                   government and the States, or on the                       (b) Affected ADs
                                           estimate.
                                                                                                   distribution of power and
                                                                                                   responsibilities among the various                            None.
                                           Authority for This Rulemaking
                                                                                                   levels of government.                                      (c) Applicability
                                              Title 49 of the United States Code                     For the reasons discussed above, I                         This AD applies to The Boeing Company
                                           specifies the FAA’s authority to issue                  certify that this AD:                                      Model 777–200 and –300 series airplanes,
                                           rules on aviation safety. Subtitle I,                     (1) Is not a ‘‘significant regulatory                    certificated in any category, equipped with
                                           section 106, describes the authority of                 action’’ under Executive Order 12866,                      Rolls-Royce Model RB211-Trent 800 engines,
                                           the FAA Administrator. Subtitle VII:                                                                               on which the actions specified in Boeing
                                                                                                     (2) Is not a ‘‘significant rule’’ under
                                           Aviation Programs, describes in more                                                                               Alert Service Bulletin 777–78A0094 have
                                                                                                   DOT Regulatory Policies and Procedures
                                           detail the scope of the Agency’s                                                                                   been incorporated, and the condition
                                                                                                   (44 FR 11034, February 26, 1979),
                                           authority.                                                                                                         specified in paragraph (c)(1) or (c)(2) of this
                                                                                                     (3) Will not affect intrastate aviation
                                              We are issuing this rulemaking under                                                                            AD is met on any engine, or both conditions
                                                                                                   in Alaska, and
                                           the authority described in Subtitle VII,                                                                           specified in (c)(1) and (c)(2) of this AD are
                                                                                                     (4) Will not have a significant                          met on any engine.
                                           Part A, Subpart III, Section 44701:                     economic impact, positive or negative,
                                           ‘‘General requirements.’’ Under that                                                                                 (1) Thermal protection system (TPS) non-
                                                                                                   on a substantial number of small entities                  re-contoured insulation blankets having part
                                           section, Congress charges the FAA with                  under the criteria of the Regulatory                       numbers (P/N) 315W5115–2, –6, or –20 are
                                           promoting safe flight of civil aircraft in              Flexibility Act.                                           installed on the thrust reverser (T/R) inner
                                           air commerce by prescribing regulations                                                                            wall.
                                           for practices, methods, and procedures                  List of Subjects in 14 CFR Part 39                           (2) Rolls-Royce Service Bulletin RR.211–
                                           the Administrator finds necessary for                     Air transportation, Aircraft, Aviation                   71–H824, dated July 30, 2014, has not been
                                           safety in air commerce. This regulation                 safety, Incorporation by reference,                        incorporated on the engine.
                                           is within the scope of that authority                   Safety.                                                    (d) Subject
                                           because it addresses an unsafe condition
                                           that is likely to exist or develop on                   Adoption of the Amendment                                   Air Transport Association (ATA) of
                                           products identified in this rulemaking                                                                             America Code 78, Engine exhaust.
                                                                                                     Accordingly, under the authority
                                           action.                                                 delegated to me by the Administrator,                      (e) Unsafe Condition
                                              This AD is issued in accordance with                 the FAA amends 14 CFR part 39 as                             This AD was prompted by reports of
                                           authority delegated by the Executive                    follows:                                                   inadequate clearance between the TPS
                                           Director, Aircraft Certification Service,                                                                          insulation blankets and the electronic engine
                                           as authorized by FAA Order 8000.51C.                    PART 39—AIRWORTHINESS                                      control (EEC) wiring, which resulted in
                                           In accordance with that order, issuance                 DIRECTIVES                                                 damaged wires. We are issuing this AD to
                                           of ADs is normally a function of the                                                                               address damaged wires, which could result
                                           Compliance and Airworthiness                            ■ 1. The authority citation for part 39                    in in-flight shutdown of the engine, or the
                                           Division, but during this transition                    continues to read as follows:                              inability to properly control thrust, and
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                                                                                                                                                              consequent reduced controllability of the
                                           period, the Executive Director has                          Authority: 49 U.S.C. 106(g), 40113, 44701.
                                                                                                                                                              airplane.
                                           delegated the authority to issue ADs
                                                                                                   § 39.13     [Amended]                                      (f) Compliance
                                           applicable to transport category
                                           airplanes and associated appliances to                  ■ 2. The FAA amends § 39.13 by adding                        Comply with this AD within the
                                           the Director of the System Oversight                    the following new airworthiness                            compliance times specified, unless already
                                           Division.                                               directive (AD):                                            done.



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                                                            Federal Register / Vol. 83, No. 240 / Friday, December 14, 2018 / Rules and Regulations                                        64239

                                           (g) Repetitive EEC Wire Bundle Inspection               Branch, FAA, to make those findings. To be            DEPARTMENT OF TRANSPORTATION
                                              Within 2,000 flight hours since the most             approved, the repair method, modification
                                           recent EEC wire bundle inspection done as               deviation, or alteration deviation must meet          Federal Aviation Administration
                                           specified in Boeing Special Attention Service           the certification basis of the airplane, and the
                                           Bulletin 777–78–0071; or Boeing Service                 approval must specifically refer to this AD.          14 CFR Part 71
                                           Bulletin 777–78–0082; or within 500 flight
                                           hours after the effective date of this AD,              (k) Related Information                               [Docket No. FAA–2017–1187; Airspace
                                           whichever occurs later: Do a detailed                     (1) For more information about this AD,             Docket No. 17–AGL–25]
                                           inspection for damage of the EEC wire                   contact Kevin Nguyen, Aerospace Engineer,
                                           bundles and clips, and do all applicable                Propulsion Section, FAA, Seattle ACO                  RIN 2120–AA66
                                           corrective actions, in accordance with the
                                                                                                   Branch, 2200 South 216th St., Des Moines,
                                           Accomplishment Instructions of Boeing                                                                         Amendment of Class D and Class E
                                           Service Bulletin 777–78–0082, Revision 1,               WA 98198; phone and fax: 206–231–3555;
                                                                                                   email: kevin.nguyen@faa.gov.
                                                                                                                                                         Airspace and Revocation of Class E
                                           dated June 15, 2015. Do all applicable                                                                        Airspace; Jackson, MI
                                           corrective actions before further flight.                 (2) Service information identified in this
                                           Repeat the inspection thereafter at intervals           AD that is not incorporated by reference is           AGENCY:  Federal Aviation
                                           not to exceed 2,000 flight hours.                       available at the addresses specified in               Administration (FAA), DOT.
                                                                                                   paragraphs (l)(3) and (l)(4) of this AD.
                                           (h) Credit for Previous Actions                                                                               ACTION: Final rule.
                                              This paragraph provides credit for the               (l) Material Incorporated by Reference
                                           actions specified in paragraph (g) of this AD,                                                                SUMMARY:   This action modifies Class D
                                                                                                      (1) The Director of the Federal Register
                                           if those actions were performed before the                                                                    airspace, Class E airspace designated as
                                                                                                   approved the incorporation by reference
                                           effective date of this AD using the service                                                                   a surface area, and Class E airspace
                                                                                                   (IBR) of the service information listed in this
                                           information specified in paragraph (h)(1) or                                                                  extending upward from 700 feet above
                                           (h)(2) of this AD.                                      paragraph under 5 U.S.C. 552(a) and 1 CFR
                                                                                                                                                         the surface, and removes Class E
                                              (1) Boeing Special Attention Service                 part 51.
                                                                                                                                                         airspace designated as an extension to
                                           Bulletin 777–78–0071, Revision 2, dated July               (2) You must use this service information
                                                                                                   as applicable to do the actions required by
                                                                                                                                                         Class D or Class E surface area at
                                           23, 2013.
                                                                                                   this AD, unless the AD specifies otherwise.
                                                                                                                                                         Jackson County Airport-Reynolds Field,
                                              (2) Boeing Service Bulletin 777–78–0082,
                                           dated November 9, 2011.                                    (i) Boeing Service Bulletin 777–78–0082,           Jackson MI. This action is due to the
                                                                                                   Revision 1, dated June 15, 2015.                      decommissioning of the Jackson VHF
                                           (i) Optional Terminating Action                                                                               omnidirectional range (VOR), which
                                                                                                      (ii) Boeing Special Attention Service
                                              Accomplishing the actions in paragraph               Bulletin 777–78–0071, Revision 2, dated July          provided navigation guidance for the
                                           (i)(1) and (i)(2) of this AD terminates the                                                                   instrument procedures to this airport.
                                                                                                   23, 2013.
                                           repetitive inspections required by paragraph                                                                  The VOR is being decommissioned as
                                           (g) of this AD for the modified engine                     (iii) Rolls-Royce Service Bulletin RR.211–
                                                                                                   71–H824, dated July 30, 2014.                         part of the VOR Minimum Operational
                                           installation only.
                                                                                                      (3) For service information identified in          Network (MON) Program. The name and
                                              (1) Installing re-contoured insulation
                                           blankets P/N 315W5115–60, –62, and –64 on               this AD, contact Boeing Commercial                    the geographic coordinates of the airport
                                           the right T/R halves in accordance with the             Airplanes, Attention: Contractual & Data              are also updated to coincide with the
                                           Accomplishment Instructions of either                   Services (C&DS), 2600 Westminster Blvd.,              FAA’s aeronautical database.
                                           Boeing Special Attention Service Bulletin               MC 110–SK57, Seal Beach, CA 90740–5600;               Additionally, this action makes an
                                           777–78–0071, Revision 2, dated July 23,                 telephone 562–797–1717; internet https://             editorial change to the airspace legal
                                           2013; or Boeing Service Bulletin 777–78–                www.myboeingfleet.com.                                descriptions replacing ‘‘Airport/Facility
                                           0082, Revision 1, dated June 15, 2015.                     (4) You may view this service information          Directory’’ with the term ‘‘Chart
                                              (2) Modifying an engine in accordance                                                                      Supplement.’’
                                                                                                   at the FAA, Transport Standards Branch,
                                           with the Accomplishment Instructions of
                                                                                                   2200 South 216th St., Des Moines, WA. For             DATES:  Effective 0901 UTC, February 28,
                                           Rolls-Royce Service Bulletin RR.211–71–
                                           H824, dated July 30, 2014.                              information on the availability of this               2019. The Director of the Federal
                                                                                                   material at the FAA, call 206–231–3195.               Register approves this incorporation by
                                           (j) Alternative Methods of Compliance                      (5) You may view this service information
                                           (AMOCs)                                                                                                       reference action under Title 1 Code of
                                                                                                   that is incorporated by reference at the
                                                                                                                                                         Federal Regulations part 51, subject to
                                              (1) The Manager, Seattle ACO Branch,                 National Archives and Records
                                           FAA, has the authority to approve AMOCs                                                                       the annual revision of FAA Order
                                                                                                   Administration (NARA). For information on
                                           for this AD, if requested using the procedures                                                                7400.11 and publication of conforming
                                                                                                   the availability of this material at NARA, call
                                           found in 14 CFR 39.19. In accordance with                                                                     amendments.
                                                                                                   202–741–6030, or go to: http://
                                           14 CFR 39.19, send your request to your                                                                       ADDRESSES: FAA Order 7400.11C,
                                                                                                   www.archives.gov/federal-register/cfr/ibr-
                                           principal inspector or local Flight Standards                                                                 Airspace Designations and Reporting
                                                                                                   locations.html.
                                           District Office, as appropriate. If sending                                                                   Points, and subsequent amendments can
                                           information directly to the manager of the                Issued in Des Moines, Washington, on                be viewed online at http://www.faa.gov/
                                           ACO, send it to the attention of the person             November 29, 2018.
                                           identified in paragraph (k)(1) of this AD.                                                                    air_traffic/publications/. For further
                                                                                                   James Cashdollar,                                     information, you can contact the
                                           Information may be emailed to: 9-ANM-
                                           Seattle-ACO-AMOC-Requests@faa.gov.                      Acting Director, System Oversight Division,           Airspace Policy Group, Federal Aviation
                                              (2) Before using any approved AMOC,                  Aircraft Certification Service.                       Administration, 800 Independence
                                           notify your appropriate principal inspector,            [FR Doc. 2018–26532 Filed 12–13–18; 8:45 am]          Avenue SW, Washington, DC 20591;
                                           or lacking a principal inspector, the manager           BILLING CODE 4910–13–P                                telephone: (202) 267–8783. The Order is
                                           of the local flight standards district office/                                                                also available for inspection at the
                                           certificate holding district office.                                                                          National Archives and Records
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                                              (3) An AMOC that provides an acceptable
                                                                                                                                                         Administration (NARA). For
                                           level of safety may be used for any repair,
                                           modification, or alteration required by this                                                                  information on the availability of FAA
                                           AD if it is approved by the Boeing                                                                            Order 7400.11C at NARA, call (202)
                                           Commercial Airplanes Organization                                                                             741–6030, or go to https://
                                           Designation Authorization (ODA) that has                                                                      www.archives.gov/federal-register/cfr/
                                           been authorized by the Manager, Seattle ACO                                                                   ibr-locations.html.


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Document Created: 2018-12-14 03:49:46
Document Modified: 2018-12-14 03:49:46
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective January 18, 2019.
ContactKevin Nguyen, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3555; email: [email protected]
FR Citation83 FR 64233 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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