82_FR_24699 82 FR 24597 - Airworthiness Directives; The Boeing Company Airplanes

82 FR 24597 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 102 (May 30, 2017)

Page Range24597-24600
FR Document2017-10604

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model MD-11 and MD-11F airplanes. This proposed AD was prompted by fuel system reviews conducted by the manufacturer. This proposed AD would require a one-time inspection of the wire assemblies of the tail fuel tank transfer pumps to determine if metallic transitions are installed at the wire harness breakouts, and corrective actions if necessary. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 82 Issue 102 (Tuesday, May 30, 2017)
[Federal Register Volume 82, Number 102 (Tuesday, May 30, 2017)]
[Proposed Rules]
[Pages 24597-24600]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-10604]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0500; Directorate Identifier 2017-NM-009-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain The Boeing Company Model MD-11 and MD-11F airplanes. This 
proposed AD was prompted by fuel system

[[Page 24598]]

reviews conducted by the manufacturer. This proposed AD would require a 
one-time inspection of the wire assemblies of the tail fuel tank 
transfer pumps to determine if metallic transitions are installed at 
the wire harness breakouts, and corrective actions if necessary. We are 
proposing this AD to address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by July 14, 2017.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Boeing 
Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 
2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740; telephone 
562-797-1717; Internet https://www.myboeingfleet.com. You may view this 
referenced service information at the FAA, Transport Airplane 
Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the 
availability of this material at the FAA, call 425-227-1221. It is also 
available on the Internet at http://www.regulations.gov by searching 
for and locating Docket No. FAA-2017-0500.

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-
0500; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: S[eacute]rj Harutunian, Aerospace 
Engineer, Propulsion Branch, ANM-140L, FAA, Los Angeles Aircraft 
Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, 
California 90712-4137; phone: 562-627-5254; fax: 562-627-5210; email: 
[email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2017-0500; 
Directorate Identifier 2017-NM-009-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    The FAA has examined the underlying safety issues involved in fuel 
tank explosions on several large transport airplanes, including the 
adequacy of existing regulations, the service history of airplanes 
subject to those regulations, and existing maintenance practices for 
fuel tank systems. As a result of those findings, we issued a final 
rule titled ``Transport Airplane Fuel Tank System Design Review, 
Flammability Reduction, and Maintenance and Inspection Requirements'' 
(66 FR 23086, May 7, 2001). In addition to new airworthiness standards 
for transport airplanes and new maintenance requirements that rule 
included Amendment 21-78, which established Special Federal Aviation 
Regulation No. 88 (``SFAR 88'') at 14 CFR part 21. Subsequently, SFAR 
88 was amended by: Amendment 21-82 (67 FR 57490, September 10, 2002; 
corrected at 67 FR 70809, November 26, 2002) and Amendment 21-83 (67 FR 
72830, December 9, 2002; corrected at 68 FR 37735, June 25, 2003, to 
change ``21-82'' to ``21-83'').
    Among other actions, SFAR 88 requires certain type design (i.e., 
type certificate (TC) and supplemental type certificate (STC)) holders 
to substantiate that their fuel tank systems can prevent ignition 
sources in the fuel tanks. This requirement applies to type design 
holders for large turbine-powered transport airplanes and for 
subsequent modifications to those airplanes. It requires them to 
perform design reviews and to develop design changes and maintenance 
procedures if their designs do not meet the new fuel tank safety 
standards. As explained in the preamble to the rule, we intended to 
adopt airworthiness directives to mandate any changes found necessary 
to address unsafe conditions identified as a result of these reviews.
    In evaluating these design reviews, we have established four 
criteria intended to define the unsafe conditions associated with fuel 
tank systems that require corrective actions. The percentage of 
operating time during which fuel tanks are exposed to flammable 
conditions is one of these criteria. The other three criteria address 
the failure types under evaluation: Single failures, combination of 
failures, and unacceptable (failure) experience. For all three failure 
criteria, the evaluations included consideration of previous actions 
taken that may mitigate the need for further action.
    This proposed AD was prompted by fuel system reviews conducted by 
the manufacturer. In addition, during one event on a Model MD-11 
airplane that occurred during flight, a level 1 message ``TAIL L PUMP 
OFF'' was annunciated; investigation of the wire bundles in the 
horizontal stabilizer next to the tail fuel tank revealed burned and 
broken wires, which showed severe signs of overheating and arcing. This 
is considered a quality control issue because the type design harnesses 
were not installed properly during the required SFAR 88 modifications.
    We are proposing this AD to detect and correct potential ignition 
sources inside the tail fuel tank, which, in combination with flammable 
vapors, could result in a fuel tank fire or explosion, and consequent 
loss of the airplane.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin MD11-28A150, dated 
October 6, 2016. The service information describes procedures for a 
one-time detailed inspection of the wire assemblies of the tail fuel 
tank transfer pumps to determine if metallic transitions are installed 
at the wire harness breakouts, and corrective actions that include 
repair and replacement of the wire assembly. 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.

[[Page 24599]]

Related Rulemaking

    On May 14, 2010, we issued AD 2010-11-12, Amendment 39-16317 (75 FR 
30274, June 1, 2010) (``AD 2010-11-12''), for certain Model MD-11 and 
MD-11F airplanes. AD 2010-11-12 requires a one-time inspection to 
determine if metallic transitions are installed on wire harnesses of 
the tail fuel tank transfer pumps, and to inspect for and repair 
damaged wires. AD 2010-11-12 also requires repetitive inspections of 
repaired areas; and a permanent modification of the wire harnesses if 
metallic transitions are not installed, which would terminate the 
repetitive inspections. AD 2010-11-12 also requires modifying the case 
grounding for the alternate fuel pump of the tail fuel tank, the leak 
detection thermal switch grounding for the number 2 engine, and wire 
braid grounding in the empennage and number 2 engine inlet. We issued 
AD 2010-11-12 to prevent insufficient grounding of the fuel pump, 
which, in combination with an electrical failure within the fuel pump 
and a compromised electrical bond, could cause a fuel tank ignition, 
resulting in consequent fire or explosion.
    On January 3, 2011, we issued AD 2011-02-01, Amendment 39-16574 (76 
FR 1983, January 12, 2011) (``AD 2011-02-01''), for certain Model MD-11 
and MD-11F airplanes. AD 2011-02-01 requires a one-time inspection to 
detect damage of the wire assemblies of the tail fuel tank fuel system, 
a wiring change, and corrective actions if necessary. AD 2011-02-01 
also requires, for certain airplanes, a general visual inspection for 
correct installation of the self-adhering high-temperature electrical 
insulation tape; installation of a wire assembly support bracket and 
routing wire assembly; changing of certain wire supports; and 
installation of a wire protection bracket. We issued AD 2011-02-01 to 
detect and correct a potential of ignition sources inside fuel tanks, 
which, in combination with flammable vapors, could result in a fuel 
tank fire or explosion, and consequent loss of the airplane.
    This proposed AD would not supersede or terminate the actions 
required by AD 2010-11-12 and AD 2011-02-01. Certain airplanes 
identified in the related rulemaking may not have the correct wire 
harness with metallic transitions installed; therefore this proposed AD 
would address the unsafe condition on those airplanes.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would require accomplishing the actions specified 
in the service information described previously.
    The phrase ``corrective actions'' is used in this proposed AD. 
``Corrective actions'' are actions that correct or address any 
condition found. Corrective actions in an AD could include, for 
example, repairs.

Costs of Compliance

    We estimate that this proposed AD affects 110 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
               Action                         Labor cost            Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Inspection.........................  4 work-hours x $85 per hour              $0            $340         $37,400
                                      = $340.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary repairs/
replacements that would be required based on the results of the 
proposed inspection. We have no way of determining the number of 
aircraft that might need these repairs/replacements:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                   Action                                 Labor cost                Parts cost        product
----------------------------------------------------------------------------------------------------------------
Repair.....................................  9 work-hours x $85 per hour = $765.              $0            $765
Replacement................................  16 work-hours x $85 per hour =               57,526          58,886
                                              $1,360.
----------------------------------------------------------------------------------------------------------------

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.

Regulatory Findings

    We determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 this proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the 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

[[Page 24600]]

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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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):


The Boeing Company: Docket No. FAA-2017-0500; Directorate Identifier 
2017-NM-009-AD.

(a) Comments Due Date

    We must receive comments by July 14, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the Boeing Company Model MD-11 and MD-11F 
airplanes, certificated in any category, as identified in Boeing 
Alert Service Bulletin MD11-28A150, dated October 6, 2016.

(d) Subject

    Air Transport Association (ATA) of America Code 28; Fuel.

(e) Unsafe Condition

    This AD was prompted by fuel system reviews conducted by the 
manufacturer. We are issuing this AD to detect and correct potential 
ignition sources inside the tail fuel tank, which, in combination 
with flammable vapors, could result in a fuel tank fire or 
explosion, and consequent loss of the airplane.

(f) Compliance

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

(g) One-Time Inspection and Corrective Actions

    Within 27 months after the effective date of this AD: Do a one-
time detailed inspection of the wire assemblies of the tail fuel 
tank transfer pumps to determine if metallic transitions are 
installed at the wire harness breakouts, in accordance with the 
Accomplishment Instructions of Boeing Alert Service Bulletin MD11-
28A150, dated October 6, 2016. If metallic transitions are 
installed, no further action is required by this paragraph. If 
metallic transitions are not installed, do the corrective actions 
required by paragraphs (g)(1) and (g)(2) of this AD, as applicable, 
except as required by paragraphs (h)(1), (h)(2), and (h)(3) of this 
AD.
    (1) Repair any affected wire assembly before further flight, in 
accordance with Part 2 of the Accomplishment Instructions of Boeing 
Alert Service Bulletin MD11-28A150, dated October 6, 2016, or 
replace any affected wire assembly with a new assembly before 
further flight, in accordance with Part 3 of the Accomplishment 
Instructions of Boeing Alert Service Bulletin MD11-28A150, dated 
October 6, 2016. If the replacement is done, no further action is 
required for that wire assembly only.
    (2) Within 24 months after accomplishment of the repair required 
by paragraph (g)(1) of this AD: Replace any repaired wire assembly 
with a new assembly, in accordance with Part 3 of the Accomplishment 
Instructions of Boeing Alert Service Bulletin MD11-28A150, dated 
October 6, 2016.

(h) Service Information Exceptions

    (1) Where Part 4.1.f. of the Accomplishment Instructions of 
Boeing Alert Service Bulletin MD11-28A150, dated October 6, 2016, 
specifies ``CONTROLLER FUEL SYSTEM--ADJUSTMENT/TEST refer to MD-11, 
AMM (Airplane Maintenance Manual) 28-28-01 as an accepted 
procedure'': Adjust and test the controller fuel system. If the test 
fails do corrective actions, repeat the test, and do applicable 
corrective actions until the system passes the test.
    (2) Where Part 4.1.g. of the Accomplishment Instructions of 
Boeing Alert Service Bulletin MD11-28A150, dated October 6, 2016, 
specifies ``OPERATIONAL TEST OF THE FILL SHUTOFF VALVE CONTROLLER 
refer to MD-11 AMM 26-21--02, as an accepted procedure'': Do the 
operational test of the part. If the part fails the test, do 
corrective actions, repeat the test, and do applicable corrective 
actions until the part passes the test.
    (3) Where Part 4.1.h. of the Accomplishment Instructions of 
Boeing Alert Service Bulletin MD11-28A150, dated October 6, 2016, 
specifies ``SWITCH, PUMP LOW PRESSURE--ADJUSTMENT/TEST, refer to MD-
11 AMM 28-44-01, as an accepted procedure'': Do the operational test 
of the part. If the part fails the test, do corrective actions, 
repeat the test, and do applicable corrective actions until the part 
passes the test.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles Aircraft Certification Office 
(ACO), 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 (j)(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, Los Angeles ACO, 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.
    (4) For service information that contains steps that are labeled 
as Required for Compliance (RC), the provisions of paragraphs 
(i)(4)(i) and (i)(4)(ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. If a step or substep is labeled ``RC Exempt,'' then the 
RC requirement is removed from that step or substep. An AMOC is 
required for any deviations to RC steps, including substeps and 
identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(j) Related Information

    (1) For more information about this AD, contact S[eacute]rj 
Harutunian, Aerospace Engineer, Propulsion Branch, ANM-140L, FAA, 
Los Angeles ACO, 3960 Paramount Boulevard, Lakewood, California 
90712-4137; phone: 562-627-5254; fax: 562-627-5210; email: 
[email protected].
    (2) 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; 
telephone 562-797-1717; Internet https://www.myboeingfleet.com. You 
may view this referenced service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.


    Issued in Renton, Washington, on May 17, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-10604 Filed 5-26-17; 8:45 am]
 BILLING CODE 4910-13-P



                                                                           Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Proposed Rules                                                 24597

                                                  List of Subjects in 14 CFR Part 39                      effective date of this AD, replace the fastener       Compliance (RC), the provisions of
                                                                                                          assemblies in the crew access ladder                  paragraphs (j)(4)(i) and (j)(4)(ii) of this AD
                                                    Air transportation, Aircraft, Aviation                handrails with new fastener assemblies, in            apply.
                                                  safety, Incorporation by reference,                     accordance with the Accomplishment                       (i) The steps labeled as RC, including
                                                  Safety.                                                 Instructions of Boeing Special Attention              substeps under an RC step and any figures
                                                                                                          Service Bulletin 747–25–3693, dated                   identified in an RC step, must be done to
                                                  The Proposed Amendment                                  November 10, 2016.                                    comply with the AD. If a step or substep is
                                                    Accordingly, under the authority                      (h) Inspection and Replacement                        labeled ‘‘RC Exempt,’’ then the RC
                                                  delegated to me by the Administrator,                                                                         requirement is removed from that step or
                                                                                                             (1) For airplanes identified in paragraph          substep. An AMOC is required for any
                                                  the FAA proposes to amend 14 CFR part
                                                                                                          (c)(2) of this AD: Within 36 months after the         deviations to RC steps, including substeps
                                                  39 as follows:                                          effective date of this AD, do a general visual        and identified figures.
                                                                                                          inspection of the crew access ladder                     (ii) Steps not labeled as RC may be
                                                  PART 39—AIRWORTHINESS                                   handrails for the discrepant fastener
                                                  DIRECTIVES                                                                                                    deviated from using accepted methods in
                                                                                                          assembly hardware identified in the                   accordance with the operator’s maintenance
                                                                                                          Accomplishment Instructions of Boeing                 or inspection program without obtaining
                                                  ■ 1. The authority citation for part 39                 Special Attention Service Bulletin 747–25–
                                                  continues to read as follows:                                                                                 approval of an AMOC, provided the RC steps,
                                                                                                          3693, dated November 10, 2016. A review of            including substeps and identified figures, can
                                                      Authority: 49 U.S.C. 106(g), 40113, 44701.          airplane maintenance records is acceptable in         still be done as specified, and the airplane
                                                                                                          lieu of this inspection, if the part number(s)        can be put back in an airworthy condition.
                                                  § 39.13   [Amended]                                     of the fastener assembly hardware can be
                                                  ■ 2. The FAA amends § 39.13 by adding                   conclusively determined from that review.             (k) Related Information
                                                  the following new airworthiness                            (2) If any discrepant fastener assembly               (1) For more information about this AD,
                                                                                                          hardware is found, within 36 months after             contact Susan L. Monroe, Aerospace
                                                  directive (AD):                                         the effective date of this AD, replace the            Engineer, Cabin Safety and Environmental
                                                  The Boeing Company: Docket No. FAA–                     discrepant fastener assemblies in the crew            Systems Branch, ANM–150S, FAA, Seattle
                                                      2017–0499; Directorate Identifier 2016–             access ladder handrails with new fastener             ACO, 1601 Lind Avenue SW., Renton, WA;
                                                      NM–205–AD.                                          assemblies, in accordance with the                    phone: 425–917–6457; fax: 425–917–6590;
                                                                                                          Accomplishment Instructions of Boeing                 email: susan.l.monroe@faa.gov.
                                                  (a) Comments Due Date                                   Special Attention Service Bulletin 747–25–               (2) For service information identified in
                                                    We must receive comments by July 14,                  3693, dated November 10, 2016.                        this AD, contact Boeing Commercial
                                                  2017.                                                                                                         Airplanes, Attention: Contractual & Data
                                                                                                          (i) Parts Installation Limitation
                                                  (b) Affected ADs                                                                                              Services (C&DS), 2600 Westminster Blvd.,
                                                                                                             For airplanes identified in paragraphs
                                                                                                                                                                MC 110–SK57, Seal Beach, CA 90740–5600;
                                                    None.                                                 (c)(1), (c)(2), and (c)(3) of this AD: As of the
                                                                                                                                                                telephone 562–797–1717; Internet https://
                                                                                                          effective date of this AD, no person may
                                                  (c) Applicability                                       install the discrepant fastener hardware              www.myboeingfleet.com. You may view this
                                                     This AD applies to The Boeing Company                identified in the Accomplishment                      referenced service information at the FAA,
                                                  airplanes identified in paragraphs (c)(1),              Instructions of Boeing Special Attention              Transport Airplane Directorate, 1601 Lind
                                                  (c)(2), and (c)(3) of this AD, certificated in          Service Bulletin 747–25–3693, dated                   Avenue SW., Renton, WA. For information
                                                  any category.                                           November 10, 2016, on a crew access ladder            on the availability of this material at the
                                                     (1) Model 747–400, 747–400F, and 747–8F              on any airplane.                                      FAA, call 425–227–1221.
                                                  series airplanes, as identified in Boeing                                                                       Issued in Renton, Washington, on May 17,
                                                  Special Attention Service Bulletin 747–25–              (j) Alternative Methods of Compliance
                                                                                                                                                                2017.
                                                  3693, dated November 10, 2016.                          (AMOCs)
                                                                                                                                                                Michael Kaszycki,
                                                     (2) Model 747–8F series airplanes with an               (1) The Manager, Seattle Aircraft
                                                                                                          Certification Office (ACO), FAA, has the              Acting Manager, Transport Airplane
                                                  original certificate of airworthiness, or an
                                                                                                          authority to approve AMOCs for this AD, if            Directorate, Aircraft Certification Service.
                                                  original export certificate of airworthiness,
                                                  issued after November 10, 2016, and before              requested using the procedures found in 14            [FR Doc. 2017–10606 Filed 5–26–17; 8:45 am]
                                                  the effective date of this AD.                          CFR 39.19. In accordance with 14 CFR 39.19,           BILLING CODE 4910–13–P
                                                     (3) Model 747–8F series airplanes with an            send your request to your principal inspector
                                                  original certificate of airworthiness, or an            or local Flight Standards District Office, as
                                                  original export certificate of airworthiness,           appropriate. If sending information directly          DEPARTMENT OF TRANSPORTATION
                                                  issued on or after the effective date of this           to the manager of the ACO, send it to the
                                                  AD.                                                     attention of the person identified in                 Federal Aviation Administration
                                                                                                          paragraph (k)(1) of this AD. Information may
                                                  (d) Subject                                             be emailed to: 9-ANM-Seattle-ACO-AMOC-
                                                                                                          Requests@faa.gov.                                     14 CFR Part 39
                                                    Air Transport Association (ATA) of
                                                  America Code 25; Equipment/furnishings.                    (2) Before using any approved AMOC,                [Docket No. FAA–2017–0500; Directorate
                                                                                                          notify your appropriate principal inspector,          Identifier 2017–NM–009–AD]
                                                  (e) Unsafe Condition                                    or lacking a principal inspector, the manager
                                                     This AD was prompted by reports of failure           of the local flight standards district office/        RIN 2120–AA64
                                                  of the fastener assemblies on the crew access           certificate holding district office.
                                                  ladder handrails. We are issuing this AD to                (3) An AMOC that provides an acceptable            Airworthiness Directives; The Boeing
                                                  prevent the fastener assemblies from coming             level of safety may be used for any repair,           Company Airplanes
                                                  loose on the crew access ladder handrails,              modification, or alteration required by this
                                                  which could result in serious or fatal injury           AD if it is approved by the Boeing                    AGENCY: Federal Aviation
                                                                                                          Commercial Airplanes Organization                     Administration (FAA), DOT.
sradovich on DSK3GMQ082PROD with PROPOSALS




                                                  to personnel.
                                                                                                          Designation Authorization (ODA) that has
                                                  (f) Compliance                                                                                                ACTION: Notice of proposed rulemaking
                                                                                                          been authorized by the Manager, Seattle
                                                     Comply with this AD within the                       ACO, to make those findings. To be                    (NPRM).
                                                  compliance times specified, unless already              approved, the repair method, modification
                                                                                                          deviation, or alteration deviation must meet
                                                                                                                                                                SUMMARY:  We propose to adopt a new
                                                  done.
                                                                                                          the certification basis of the airplane, and the      airworthiness directive (AD) for certain
                                                  (g) Replacement                                         approval must specifically refer to this AD.          The Boeing Company Model MD–11
                                                     For airplanes identified in paragraph (c)(1)            (4) For service information that contains          and MD–11F airplanes. This proposed
                                                  of this AD: Within 36 months after the                  steps that are labeled as Required for                AD was prompted by fuel system


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                                                  24598                    Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Proposed Rules

                                                  reviews conducted by the manufacturer.                  (ACO), 3960 Paramount Boulevard,                      requires them to perform design reviews
                                                  This proposed AD would require a one-                   Lakewood, California 90712–4137;                      and to develop design changes and
                                                  time inspection of the wire assemblies                  phone: 562–627–5254; fax: 562–627–                    maintenance procedures if their designs
                                                  of the tail fuel tank transfer pumps to                 5210; email: serj.harutunian@faa.gov.                 do not meet the new fuel tank safety
                                                  determine if metallic transitions are                   SUPPLEMENTARY INFORMATION:                            standards. As explained in the preamble
                                                  installed at the wire harness breakouts,                                                                      to the rule, we intended to adopt
                                                  and corrective actions if necessary. We                 Comments Invited                                      airworthiness directives to mandate any
                                                  are proposing this AD to address the                      We invite you to send any written                   changes found necessary to address
                                                  unsafe condition on these products.                     relevant data, views, or arguments about              unsafe conditions identified as a result
                                                  DATES: We must receive comments on                      this proposed AD. Send your comments                  of these reviews.
                                                  this proposed AD by July 14, 2017.                      to an address listed under the
                                                                                                                                                                   In evaluating these design reviews, we
                                                                                                          ADDRESSES section. Include ‘‘Docket No.
                                                  ADDRESSES: You may send comments,                                                                             have established four criteria intended
                                                                                                          FAA–2017–0500; Directorate Identifier
                                                  using the procedures found in 14 CFR                                                                          to define the unsafe conditions
                                                                                                          2017–NM–009–AD’’ at the beginning of
                                                  11.43 and 11.45, by any of the following                                                                      associated with fuel tank systems that
                                                                                                          your comments. We specifically invite
                                                  methods:                                                                                                      require corrective actions. The
                                                                                                          comments on the overall regulatory,
                                                    • Federal eRulemaking Portal: Go to                                                                         percentage of operating time during
                                                                                                          economic, environmental, and energy
                                                  http://www.regulations.gov. Follow the                                                                        which fuel tanks are exposed to
                                                                                                          aspects of this proposed AD. We will
                                                  instructions for submitting comments.                                                                         flammable conditions is one of these
                                                                                                          consider all comments received by the
                                                    • Fax: 202–493–2251.                                                                                        criteria. The other three criteria address
                                                                                                          closing date and may amend this
                                                    • Mail: U.S. Department of                                                                                  the failure types under evaluation:
                                                                                                          proposed AD because of those
                                                  Transportation, Docket Operations, M–                                                                         Single failures, combination of failures,
                                                                                                          comments.
                                                  30, West Building Ground Floor, Room                      We will post all comments we                        and unacceptable (failure) experience.
                                                  W12–140, 1200 New Jersey Avenue SE.,                    receive, without change, to http://                   For all three failure criteria, the
                                                  Washington, DC 20590.                                   www.regulations.gov, including any                    evaluations included consideration of
                                                    • Hand Delivery: Deliver to Mail                      personal information you provide. We                  previous actions taken that may mitigate
                                                  address above between 9 a.m. and 5                      will also post a report summarizing each              the need for further action.
                                                  p.m., Monday through Friday, except                     substantive verbal contact we receive                    This proposed AD was prompted by
                                                  Federal holidays.                                       about this proposed AD.                               fuel system reviews conducted by the
                                                    For service information identified in
                                                                                                                                                                manufacturer. In addition, during one
                                                  this NPRM, contact Boeing Commercial                    Discussion
                                                                                                                                                                event on a Model MD–11 airplane that
                                                  Airplanes, Attention: Contractual & Data                   The FAA has examined the                           occurred during flight, a level 1 message
                                                  Services (C&DS), 2600 Westminster                       underlying safety issues involved in fuel             ‘‘TAIL L PUMP OFF’’ was annunciated;
                                                  Blvd., MC 110–SK57, Seal Beach, CA                      tank explosions on several large                      investigation of the wire bundles in the
                                                  90740; telephone 562–797–1717;                          transport airplanes, including the                    horizontal stabilizer next to the tail fuel
                                                  Internet https://                                       adequacy of existing regulations, the                 tank revealed burned and broken wires,
                                                  www.myboeingfleet.com. You may view                     service history of airplanes subject to               which showed severe signs of
                                                  this referenced service information at                  those regulations, and existing                       overheating and arcing. This is
                                                  the FAA, Transport Airplane                             maintenance practices for fuel tank                   considered a quality control issue
                                                  Directorate, 1601 Lind Avenue SW.,                      systems. As a result of those findings,               because the type design harnesses were
                                                  Renton, WA. For information on the                      we issued a final rule titled ‘‘Transport             not installed properly during the
                                                  availability of this material at the FAA,               Airplane Fuel Tank System Design                      required SFAR 88 modifications.
                                                  call 425–227–1221. It is also available                 Review, Flammability Reduction, and
                                                  on the Internet at http://                              Maintenance and Inspection                               We are proposing this AD to detect
                                                  www.regulations.gov by searching for                    Requirements’’ (66 FR 23086, May 7,                   and correct potential ignition sources
                                                  and locating Docket No. FAA–2017–                       2001). In addition to new airworthiness               inside the tail fuel tank, which, in
                                                  0500.                                                   standards for transport airplanes and                 combination with flammable vapors,
                                                                                                          new maintenance requirements that rule                could result in a fuel tank fire or
                                                  Examining the AD Docket                                                                                       explosion, and consequent loss of the
                                                                                                          included Amendment 21–78, which
                                                     You may examine the AD docket on                     established Special Federal Aviation                  airplane.
                                                  the Internet at http://                                 Regulation No. 88 (‘‘SFAR 88’’) at 14                 Related Service Information Under 1
                                                  www.regulations.gov by searching for                    CFR part 21. Subsequently, SFAR 88                    CFR Part 51
                                                  and locating Docket No. FAA–2017–                       was amended by: Amendment 21–82
                                                  0500; or in person at the Docket                        (67 FR 57490, September 10, 2002;                        We reviewed Boeing Alert Service
                                                  Management Facility between 9 a.m.                      corrected at 67 FR 70809, November 26,                Bulletin MD11–28A150, dated October
                                                  and 5 p.m., Monday through Friday,                      2002) and Amendment 21–83 (67 FR                      6, 2016. The service information
                                                  except Federal holidays. The AD docket                  72830, December 9, 2002; corrected at                 describes procedures for a one-time
                                                  contains this proposed AD, the                          68 FR 37735, June 25, 2003, to change                 detailed inspection of the wire
                                                  regulatory evaluation, any comments                     ‘‘21–82’’ to ‘‘21–83’’).                              assemblies of the tail fuel tank transfer
                                                  received, and other information. The                       Among other actions, SFAR 88                       pumps to determine if metallic
                                                  street address for the Docket Office                    requires certain type design (i.e., type              transitions are installed at the wire
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                                                  (phone: 800–647–5527) is in the                         certificate (TC) and supplemental type                harness breakouts, and corrective
                                                  ADDRESSES section. Comments will be                     certificate (STC)) holders to substantiate            actions that include repair and
                                                  available in the AD docket shortly after                that their fuel tank systems can prevent              replacement of the wire assembly. This
                                                  receipt.                                                ignition sources in the fuel tanks. This              service information is reasonably
                                                  FOR FURTHER INFORMATION CONTACT: Sérj                  requirement applies to type design                    available because the interested parties
                                                  Harutunian, Aerospace Engineer,                         holders for large turbine-powered                     have access to it through their normal
                                                  Propulsion Branch, ANM–140L, FAA,                       transport airplanes and for subsequent                course of business or by the means
                                                  Los Angeles Aircraft Certification Office               modifications to those airplanes. It                  identified in the ADDRESSES section.


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                                                                                  Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Proposed Rules                                                             24599

                                                  Related Rulemaking                                                   resulting in consequent fire or                               not have the correct wire harness with
                                                                                                                       explosion.                                                    metallic transitions installed; therefore
                                                    On May 14, 2010, we issued AD                                        On January 3, 2011, we issued AD                            this proposed AD would address the
                                                  2010–11–12, Amendment 39–16317 (75                                   2011–02–01, Amendment 39–16574 (76                            unsafe condition on those airplanes.
                                                  FR 30274, June 1, 2010) (‘‘AD 2010–11–                               FR 1983, January 12, 2011) (‘‘AD 2011–
                                                  12’’), for certain Model MD–11 and MD–                               02–01’’), for certain Model MD–11 and                         FAA’s Determination
                                                  11F airplanes. AD 2010–11–12 requires                                MD–11F airplanes. AD 2011–02–01                                 We are proposing this AD because we
                                                  a one-time inspection to determine if                                requires a one-time inspection to detect                      evaluated all the relevant information
                                                  metallic transitions are installed on wire                           damage of the wire assemblies of the tail                     and determined the unsafe condition
                                                  harnesses of the tail fuel tank transfer                             fuel tank fuel system, a wiring change,                       described previously is likely to exist or
                                                  pumps, and to inspect for and repair                                 and corrective actions if necessary. AD                       develop in other products of the same
                                                  damaged wires. AD 2010–11–12 also                                    2011–02–01 also requires, for certain                         type design.
                                                  requires repetitive inspections of                                   airplanes, a general visual inspection for
                                                                                                                       correct installation of the self-adhering                     Proposed AD Requirements
                                                  repaired areas; and a permanent
                                                  modification of the wire harnesses if                                high-temperature electrical insulation
                                                                                                                                                                                       This proposed AD would require
                                                  metallic transitions are not installed,                              tape; installation of a wire assembly
                                                                                                                                                                                     accomplishing the actions specified in
                                                  which would terminate the repetitive                                 support bracket and routing wire
                                                                                                                                                                                     the service information described
                                                  inspections. AD 2010–11–12 also                                      assembly; changing of certain wire
                                                                                                                                                                                     previously.
                                                                                                                       supports; and installation of a wire
                                                  requires modifying the case grounding                                                                                                The phrase ‘‘corrective actions’’ is
                                                                                                                       protection bracket. We issued AD 2011–
                                                  for the alternate fuel pump of the tail                                                                                            used in this proposed AD. ‘‘Corrective
                                                                                                                       02–01 to detect and correct a potential
                                                  fuel tank, the leak detection thermal                                of ignition sources inside fuel tanks,                        actions’’ are actions that correct or
                                                  switch grounding for the number 2                                    which, in combination with flammable                          address any condition found. Corrective
                                                  engine, and wire braid grounding in the                              vapors, could result in a fuel tank fire                      actions in an AD could include, for
                                                  empennage and number 2 engine inlet.                                 or explosion, and consequent loss of the                      example, repairs.
                                                  We issued AD 2010–11–12 to prevent                                   airplane.                                                     Costs of Compliance
                                                  insufficient grounding of the fuel pump,                               This proposed AD would not
                                                  which, in combination with an                                        supersede or terminate the actions                               We estimate that this proposed AD
                                                  electrical failure within the fuel pump                              required by AD 2010–11–12 and AD                              affects 110 airplanes of U.S. registry. We
                                                  and a compromised electrical bond,                                   2011–02–01. Certain airplanes                                 estimate the following costs to comply
                                                  could cause a fuel tank ignition,                                    identified in the related rulemaking may                      with this proposed AD:

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

                                                  Inspection ................................     4 work-hours × $85 per hour = $340 .....................................                        $0           $340        $37,400



                                                    We estimate the following costs to do                              of the proposed inspection. We have no                        aircraft that might need these repairs/
                                                  any necessary repairs/replacements that                              way of determining the number of                              replacements:
                                                  would be required based on the results

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

                                                  Repair ..............................................   9 work-hours × $85 per hour = $765 ........................................................            $0           $765
                                                  Replacement ....................................        16 work-hours × $85 per hour = $1,360 ...................................................          57,526         58,886



                                                  Authority for This Rulemaking                                        for practices, methods, and procedures                        distribution of power and
                                                                                                                       the Administrator finds necessary for                         responsibilities among the various
                                                     Title 49 of the United States Code                                safety in air commerce. This regulation                       levels of government.
                                                  specifies the FAA’s authority to issue                               is within the scope of that authority
                                                  rules on aviation safety. Subtitle I,                                                                                                For the reasons discussed above, I
                                                                                                                       because it addresses an unsafe condition                      certify this proposed regulation:
                                                  section 106, describes the authority of                              that is likely to exist or develop on
                                                  the FAA Administrator. Subtitle VII:                                                                                                 (1) Is not a ‘‘significant regulatory
                                                                                                                       products identified in this rulemaking                        action’’ under Executive Order 12866,
                                                  Aviation Programs, describes in more                                 action.
                                                  detail the scope of the Agency’s                                                                                                     (2) Is not a ‘‘significant rule’’ under
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                                                  authority.                                                           Regulatory Findings                                           the DOT Regulatory Policies and
                                                     We are issuing this rulemaking under                                We determined that this proposed AD                         Procedures (44 FR 11034, February 26,
                                                  the authority described in Subtitle VII,                             would not have federalism implications                        1979),
                                                  Part A, Subpart III, Section 44701:                                  under Executive Order 13132. This                               (3) Will not affect intrastate aviation
                                                  ‘‘General requirements.’’ Under that                                 proposed AD would not have a                                  in Alaska, and
                                                  section, Congress charges the FAA with                               substantial direct effect on the States, on                     (4) Will not have a significant
                                                  promoting safe flight of civil aircraft in                           the relationship between the national                         economic impact, positive or negative,
                                                  air commerce by prescribing regulations                              Government and the States, or on the                          on a substantial number of small entities


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                                                  24600                    Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Proposed Rules

                                                  under the criteria of the Regulatory                    paragraph. If metallic transitions are not               (2) Before using any approved AMOC,
                                                  Flexibility Act.                                        installed, do the corrective actions required         notify your appropriate principal inspector,
                                                                                                          by paragraphs (g)(1) and (g)(2) of this AD, as        or lacking a principal inspector, the manager
                                                  List of Subjects in 14 CFR Part 39                      applicable, except as required by paragraphs          of the local flight standards district office/
                                                    Air transportation, Aircraft, Aviation                (h)(1), (h)(2), and (h)(3) of this AD.                certificate holding district office.
                                                                                                            (1) Repair any affected wire assembly
                                                  safety, Incorporation by reference,                     before further flight, in accordance with Part
                                                                                                                                                                   (3) An AMOC that provides an acceptable
                                                  Safety.                                                 2 of the Accomplishment Instructions of               level of safety may be used for any repair,
                                                                                                          Boeing Alert Service Bulletin MD11–28A150,            modification, or alteration required by this
                                                  The Proposed Amendment                                                                                        AD if it is approved by the Boeing
                                                                                                          dated October 6, 2016, or replace any affected
                                                    Accordingly, under the authority                      wire assembly with a new assembly before              Commercial Airplanes Organization
                                                  delegated to me by the Administrator,                   further flight, in accordance with Part 3 of          Designation Authorization (ODA) that has
                                                  the FAA proposes to amend 14 CFR part                   the Accomplishment Instructions of Boeing             been authorized by the Manager, Los Angeles
                                                  39 as follows:                                          Alert Service Bulletin MD11–28A150, dated             ACO, to make those findings. To be
                                                                                                          October 6, 2016. If the replacement is done,          approved, the repair method, modification
                                                  PART 39—AIRWORTHINESS                                   no further action is required for that wire
                                                                                                          assembly only.                                        deviation, or alteration deviation must meet
                                                  DIRECTIVES                                                (2) Within 24 months after                          the certification basis of the airplane, and the
                                                                                                          accomplishment of the repair required by              approval must specifically refer to this AD.
                                                  ■ 1. The authority citation for part 39                                                                          (4) For service information that contains
                                                                                                          paragraph (g)(1) of this AD: Replace any
                                                  continues to read as follows:                           repaired wire assembly with a new assembly,           steps that are labeled as Required for
                                                      Authority: 49 U.S.C. 106(g), 40113, 44701.          in accordance with Part 3 of the                      Compliance (RC), the provisions of
                                                                                                          Accomplishment Instructions of Boeing Alert           paragraphs (i)(4)(i) and (i)(4)(ii) of this AD
                                                  § 39.13   [Amended]                                     Service Bulletin MD11–28A150, dated                   apply.
                                                  ■ 2. The FAA amends § 39.13 by adding                   October 6, 2016.                                         (i) The steps labeled as RC, including
                                                  the following new airworthiness                         (h) Service Information Exceptions                    substeps under an RC step and any figures
                                                  directive (AD):                                                                                               identified in an RC step, must be done to
                                                                                                            (1) Where Part 4.1.f. of the
                                                                                                          Accomplishment Instructions of Boeing Alert           comply with the AD. If a step or substep is
                                                  The Boeing Company: Docket No. FAA–
                                                      2017–0500; Directorate Identifier 2017–             Service Bulletin MD11–28A150, dated                   labeled ‘‘RC Exempt,’’ then the RC
                                                      NM–009–AD.                                          October 6, 2016, specifies ‘‘CONTROLLER               requirement is removed from that step or
                                                                                                          FUEL SYSTEM—ADJUSTMENT/TEST refer                     substep. An AMOC is required for any
                                                  (a) Comments Due Date                                   to MD–11, AMM (Airplane Maintenance                   deviations to RC steps, including substeps
                                                    We must receive comments by July 14,                  Manual) 28–28–01 as an accepted                       and identified figures.
                                                  2017.                                                   procedure’’: Adjust and test the controller              (ii) Steps not labeled as RC may be
                                                                                                          fuel system. If the test fails do corrective
                                                  (b) Affected ADs                                                                                              deviated from using accepted methods in
                                                                                                          actions, repeat the test, and do applicable
                                                                                                          corrective actions until the system passes the        accordance with the operator’s maintenance
                                                    None.
                                                                                                          test.                                                 or inspection program without obtaining
                                                  (c) Applicability                                         (2) Where Part 4.1.g. of the                        approval of an AMOC, provided the RC steps,
                                                     This AD applies to the Boeing Company                Accomplishment Instructions of Boeing Alert           including substeps and identified figures, can
                                                  Model MD–11 and MD–11F airplanes,                       Service Bulletin MD11–28A150, dated                   still be done as specified, and the airplane
                                                  certificated in any category, as identified in          October 6, 2016, specifies ‘‘OPERATIONAL              can be put back in an airworthy condition.
                                                  Boeing Alert Service Bulletin MD11–28A150,              TEST OF THE FILL SHUTOFF VALVE
                                                  dated October 6, 2016.                                  CONTROLLER refer to MD–11 AMM 26–21—                  (j) Related Information
                                                                                                          02, as an accepted procedure’’: Do the                   (1) For more information about this AD,
                                                  (d) Subject                                             operational test of the part. If the part fails       contact Sérj Harutunian, Aerospace Engineer,
                                                    Air Transport Association (ATA) of                    the test, do corrective actions, repeat the test,     Propulsion Branch, ANM–140L, FAA, Los
                                                  America Code 28; Fuel.                                  and do applicable corrective actions until the
                                                                                                                                                                Angeles ACO, 3960 Paramount Boulevard,
                                                                                                          part passes the test.
                                                  (e) Unsafe Condition                                                                                          Lakewood, California 90712–4137; phone:
                                                                                                            (3) Where Part 4.1.h. of the
                                                     This AD was prompted by fuel system                  Accomplishment Instructions of Boeing Alert           562–627–5254; fax: 562–627–5210; email:
                                                  reviews conducted by the manufacturer. We               Service Bulletin MD11–28A150, dated                   serj.harutunian@faa.gov.
                                                  are issuing this AD to detect and correct               October 6, 2016, specifies ‘‘SWITCH, PUMP                (2) For service information identified in
                                                  potential ignition sources inside the tail fuel         LOW PRESSURE—ADJUSTMENT/TEST,                         this AD, contact Boeing Commercial
                                                  tank, which, in combination with flammable              refer to MD–11 AMM 28–44–01, as an                    Airplanes, Attention: Contractual & Data
                                                  vapors, could result in a fuel tank fire or             accepted procedure’’: Do the operational test         Services (C&DS), 2600 Westminster Blvd.,
                                                  explosion, and consequent loss of the                   of the part. If the part fails the test, do           MC 110–SK57, Seal Beach, CA 90740;
                                                  airplane.                                               corrective actions, repeat the test, and do           telephone 562–797–1717; Internet https://
                                                                                                          applicable corrective actions until the part
                                                  (f) Compliance                                                                                                www.myboeingfleet.com. You may view this
                                                                                                          passes the test.
                                                     Comply with this AD within the                                                                             referenced service information at the FAA,
                                                  compliance times specified, unless already              (i) Alternative Methods of Compliance                 Transport Airplane Directorate, 1601 Lind
                                                  done.                                                   (AMOCs)                                               Avenue SW., Renton, WA. For information
                                                                                                             (1) The Manager, Los Angeles Aircraft              on the availability of this material at the
                                                  (g) One-Time Inspection and Corrective                  Certification Office (ACO), FAA, has the
                                                  Actions                                                                                                       FAA, call 425–227–1221.
                                                                                                          authority to approve AMOCs for this AD, if
                                                     Within 27 months after the effective date            requested using the procedures found in 14
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                                                                                                                                                                  Issued in Renton, Washington, on May 17,
                                                  of this AD: Do a one-time detailed inspection           CFR 39.19. In accordance with 14 CFR 39.19,           2017.
                                                  of the wire assemblies of the tail fuel tank            send your request to your principal inspector
                                                  transfer pumps to determine if metallic                 or local Flight Standards District Office, as         Michael Kaszycki,
                                                  transitions are installed at the wire harness           appropriate. If sending information directly          Acting Manager, Transport Airplane
                                                  breakouts, in accordance with the                       to the manager of the ACO, send it to the             Directorate, Aircraft Certification Service.
                                                  Accomplishment Instructions of Boeing Alert             attention of the person identified in                 [FR Doc. 2017–10604 Filed 5–26–17; 8:45 am]
                                                  Service Bulletin MD11–28A150, dated                     paragraph (j)(1) of this AD. Information may
                                                                                                                                                                BILLING CODE 4910–13–P
                                                  October 6, 2016. If metallic transitions are            be emailed to: 9-ANM-LAACO-AMOC-
                                                  installed, no further action is required by this        Requests@faa.gov.



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Document Created: 2018-11-08 08:55:04
Document Modified: 2018-11-08 08:55:04
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by July 14, 2017.
ContactS[eacute]rj Harutunian, Aerospace Engineer, Propulsion Branch, ANM-140L, FAA, Los Angeles Aircraft Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, California 90712-4137; phone: 562-627-5254; fax: 562-627-5210; email: [email protected]
FR Citation82 FR 24597 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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