80_FR_34217 80 FR 34103 - Airworthiness Directives; The Boeing Company Airplanes

80 FR 34103 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 114 (June 15, 2015)

Page Range34103-34106
FR Document2015-14231

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 777-200 and -300 series airplanes. This proposed AD was prompted by reports of fatigue cracking of a certain chord of the pivot bulkhead. This proposed AD would require repetitive inspections for cracking of the left side and right side forward outer chords of the pivot bulkhead, and related investigative and corrective actions if necessary. This proposed AD provides a modification of the pivot bulkhead, which would terminate the repetitive inspections. We are proposing this AD to detect and correct fatigue cracking of the outer flanges of the left and right side forward outer chords of the pivot bulkhead, which could result in a severed forward outer chord and consequent loss of horizontal stabilizer control.

Federal Register, Volume 80 Issue 114 (Monday, June 15, 2015)
[Federal Register Volume 80, Number 114 (Monday, June 15, 2015)]
[Proposed Rules]
[Pages 34103-34106]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-14231]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-1428; Directorate Identifier 2015-NM-026-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 777-200 and -300 series airplanes. 
This proposed AD was prompted by reports of fatigue cracking of a 
certain chord of the pivot bulkhead. This proposed AD would require 
repetitive inspections for cracking of the left side and right side 
forward outer chords of the pivot bulkhead, and related investigative 
and corrective actions if necessary. This proposed AD provides a 
modification of the pivot bulkhead, which would terminate the 
repetitive inspections. We are proposing this AD to detect and correct 
fatigue cracking of the outer flanges of the left and right side 
forward outer chords of the pivot bulkhead, which could result in a 
severed forward outer chord and consequent loss of horizontal 
stabilizer control.

DATES: We must receive comments on this proposed AD by July 30, 2015.

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 proposed AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, P. 
O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; phone: 206-544-5000, 
extension 1; fax: 206-766-5680; 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-2015-1428.

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-2015-
1428; 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: Narinder Luthra, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office 
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6513; fax: 425-917-6590; email: [email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2015-1428; 
Directorate Identifier 2015-NM-026-AD'' at the beginning of your 
comments. We specifically invite

[[Page 34104]]

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

    We received reports of fatigue cracking of the forward outer chord 
of the STA 2370 pivot bulkhead. Cracks in the forward outer chords of 
the STA 2370 pivot bulkhead that are not found and repaired can become 
large and result in a severed forward outer chord. The cracks were 
caused by a stress concentration, which is generated at the transition 
radius of the forward outer flange of the chord prior to the chord 
splice at the upper longeron. Since the horizontal stabilizer is 
attached to the STA 2370 bulkhead at two pivot locations, fatigue 
cracking of the outer flanges of the left and right side forward outer 
chords of the STA 2370 pivot bulkhead, if not corrected, could result 
in a severed forward outer chord and consequent loss of horizontal 
stabilizer control.

Related Service Information Under 1 CFR Part 51

    We reviewed the following Boeing service information.
     Boeing Alert Service Bulletin 777-53A0075, dated January 
14, 2015, describes procedures for repetitive detailed and high 
frequency eddy current (HFEC) inspections for cracking of the outer 
flanges of the left and right side forward outer chords of the STA 2370 
pivot bulkhead, repetitive post-repair inspections for certain 
airplanes, and related investigative and corrective actions.
     Boeing Service Bulletin 777-53-0076, dated January 14, 
2015, describes procedures for a modification of the STA 2370 pivot 
bulkhead by replacing the left and right side forward outer chords and 
upper splice angles, and related investigative and corrective actions.
    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 of this 
NPRM.

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 these same type 
designs.

Proposed AD Requirements

    This proposed AD would require accomplishing the actions specified 
in the service information described previously, except as discussed 
under ``Differences Between this Proposed AD and the Service 
Information.'' Refer to this service information for details on the 
procedures and compliance times.
    The phrase ``related investigative actions'' is used in this 
proposed AD. ``Related investigative actions'' are follow-on actions 
that (1) are related to the primary actions, and (2) further 
investigate the nature of any condition found. Related investigative 
actions in an AD could include, for example, inspections.
    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.

Explanation of ``RC'' Steps in Service Information

    The FAA worked in conjunction with industry, under the 
Airworthiness Directive Implementation Aviation Rulemaking Committee 
(ARC), to enhance the AD system. One enhancement was a new process for 
annotating which steps in the service information are required for 
compliance with an AD. Differentiating these steps from other tasks in 
the service information is expected to improve an owner's/operator's 
understanding of crucial AD requirements and help provide consistent 
judgment in AD compliance. The steps identified as RC (required for 
compliance) in any service information identified previously have a 
direct effect on detecting, preventing, resolving, or eliminating an 
identified unsafe condition.
    For service information that contains steps that are labeled as 
Required for Compliance (RC), the following provisions apply: (1) 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, 
and an AMOC is required for any deviations to RC steps, including 
substeps and identified figures; and (2) 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.

Differences Between This Proposed AD and the Service Information

    The service bulletin specifies to contact the manufacturer for 
instructions on how to repair certain conditions, but this proposed AD 
would require repairing those conditions in one of the following ways:
     In accordance with a method that we approve; or
     Using data that meet the certification basis of the 
airplane, and that have been approved by the Boeing Commercial 
Airplanes Organization Designation Authorization (ODA) whom we have 
authorized to make those findings.

Costs of Compliance

    We estimate that this proposed AD affects 60 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                Cost on U.S.
              Action                    Labor cost        Parts cost    Cost per product          operators
----------------------------------------------------------------------------------------------------------------
Inspections of left and right      Up to 15 work-hours            $0  Up to $1,275 per      Up to $76,500 per
 side pivot bulkhead forward        x $85 per hour =                   inspection cycle.     inspection cycle.
 chord.                             $1,275 per
                                    inspection cycle.
Post-Repair Inspections..........  Up to 11 work-hours             0  Up to $935 per        Up to $56,100 per
                                    x $85 per hour =                   inspection cycle.     inspection cycle.
                                    $935 per inspection
                                    cycle.
----------------------------------------------------------------------------------------------------------------


[[Page 34105]]

    We estimate the following costs to do any necessary repairs and 
modifications 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 actions:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                Action                           Labor cost            Parts cost         Cost per product
----------------------------------------------------------------------------------------------------------------
Small crack repair...................  Up to 45 work[dash]hours x           (\1\)  Up to $7,650.
                                        $85 per hour = $3,825 per
                                        side.
Modification of the STA 2370 Pivot     Up to 137 work[dash]hours x        $34,086  Up to $45,731.
 Bulkhead (forward outer chord          $85 per hour = $11,645.
 replacement).
----------------------------------------------------------------------------------------------------------------
\1\ We have received no definitive data that would enable us to provide parts cost estimates for the on-
  condition repair specified in this proposed AD.

    According to the manufacturer, some of the costs of this proposed 
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.

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 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-2015-1428; Directorate Identifier 
2015-NM-026-AD.

(a) Comments Due Date

    We must receive comments by July 30, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 777-200 and -300 
series airplanes, certificated in any category, as identified in 
Boeing Alert Service Bulletin 777-53A0075, dated January 14, 2015.

(d) Subject

    Air Transport Association (ATA) of America Code 53, Fuselage.

(e) Unsafe Condition

    This AD was prompted by reports of fatigue cracking of the 
forward outer chord of the station (STA) 2370 pivot bulkhead. We are 
issuing this AD to detect and correct fatigue cracking of the outer 
flanges of the left and right side forward outer chords of the STA 
2370 pivot bulkhead, which could result in a severed forward outer 
chord and consequent loss of horizontal stabilizer control.

(f) Compliance

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

(g) Inspections and Corrective Actions

    At the times specified in table 1 of paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 777-53A0075, dated 
January 14, 2015, except as provided in paragraph (j)(1) of this AD: 
Do a detailed inspection and high frequency eddy current (HFEC) 
inspections for cracking of the left and right side forward outer 
chords of the STA 2370 pivot bulkhead, and do all applicable related 
investigative and corrective actions, in accordance with the 
Accomplishment Instructions of Boeing Alert Service Bulletin 777-
53A0075, dated January 14, 2015, except as provided in paragraph 
(j)(2) of this AD. Do all applicable related investigative and 
corrective actions before further flight. Repeat the inspections 
thereafter at the applicable intervals specified in table 1 of 
paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin 
777-53A0075, dated January 14, 2015, until the modification 
specified in paragraph (i) of this AD is done.

(h) Post-Repair Inspections

    For airplanes on which a repair specified in Part 2 of the 
Accomplishment Instructions of Boeing Alert Service Bulletin 777-
53A0075 has been done: At the times specified in table 2 of 
paragraph 1.E., ``Compliance,'' of Boeing Alert Service Bulletin 
777-53A0075, dated January 14, 2015, do a surface HFEC inspection, 
an open-hole HFEC inspection, and a detailed inspection for cracking 
of the left side and right side forward outer chords of the STA 2370 
pivot bulkhead, and do all applicable related investigative and 
corrective actions, in accordance with Part 3 of the Accomplishment 
Instructions of Boeing Alert Service Bulletin 777-53A0075, dated 
January 14, 2015, except as required by paragraph (j)(2) of this AD. 
Do all applicable related investigative and corrective actions 
before further flight. Repeat the inspections thereafter at the 
applicable times specified in table 2 of paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 777-53A0075, dated 
January 14, 2015, until the modification specified in paragraph (i) 
of this AD is done.

[[Page 34106]]

(i) Terminating Action

    Modifying the STA 2370 pivot bulkhead by replacing the left and 
right side forward outer chords and upper splice angles, and doing 
all applicable related investigative and corrective actions, 
terminates the repetitive inspections required by paragraphs (g) and 
(h) of this AD for the modified location only. The modification must 
be done in accordance with the Accomplishment Instructions of Boeing 
Service Bulletin 777-53-0076, dated January 14, 2015, except as 
required by paragraph (j)(2) of this AD.

(j) Exceptions to Service Bulletin Specifications

    (1) Where Boeing Alert Service Bulletin 777-53A0075, dated 
January 14, 2015, specifies a compliance time ``after the Original 
Issue date of this Service Bulletin,'' this AD requires compliance 
within the specified compliance time after the effective date of 
this AD.
    (2) Although Boeing Alert Service Bulletin 777-53A0075, dated 
January 14, 2015; and Boeing Service Bulletin 777-530076, dated 
January 14, 2015; specify to contact Boeing for appropriate action, 
and Boeing Alert Service Bulletin 777-53A0075, dated January 14, 
2015, specifies that action as ``RC'' (Required for Compliance), 
this AD requires repair before further flight using a method 
approved in accordance with the procedures specified in paragraph 
(k) of this AD.

(k) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle 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 (l)(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 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, to make 
those findings. For a repair method to be approved, the repair must 
meet the certification basis of the airplane, and the approval must 
specifically refer to this AD.
    (4) Except as required by paragraph (j)(2) of this AD: For 
service information that contains steps that are labeled as Required 
for Compliance (RC), the provisions of paragraphs (k)(4)(i) and 
(k)(4)(ii) 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. 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.

(l) Related Information

    (1) For more information about this AD, contact Narinder Luthra, 
Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle ACO, 
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6513; 
fax: 425-917-6590; email: [email protected].
    (2) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; phone: 206-544-
5000, extension 1; fax: 206-766-5680; 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 June 2, 2015.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-14231 Filed 6-12-15; 8:45 am]
 BILLING CODE 4910-13-P



                                                                               Federal Register / Vol. 80, No. 114 / Monday, June 15, 2015 / Proposed Rules                                           34103

                                                      conclusively determined from that review.               on the Internet at http://www.regulations.gov            • Federal eRulemaking Portal: Go to
                                                      For any engine replaced as specified in the             by searching for and locating Docket No.               http://www.regulations.gov. Follow the
                                                      Airbus A318/A319/A320/A321 Aircraft                     FAA–2015–1429.                                         instructions for submitting comments.
                                                      Maintenance Manual (AMM), Task 71–00–                      (2) For service information identified in             • Fax: 202–493–2251.
                                                      00–400–040–A01, ‘‘Installation of the Power             this AD, contact Airbus SAS, Airworthiness
                                                      Plant with Engine Positioner TWW 75E,’’                 Office—EAW, 1 Rond Point Maurice
                                                                                                                                                                       • Mail: U.S. Department of
                                                      dated May 2013: Within 6 months or 1,500                Bellonte, 31707 Blagnac Cedex, France;                 Transportation, Docket Operations, M–
                                                      flight cycles, whichever occurs first after the         telephone: +33 5 61 93 36 96; fax: +33 5 61            30, West Building Ground Floor, Room
                                                      effective date of this AD, re-torque the 4 aft          93 44 51; email account.airworth-eas@                  W12–140, 1200 New Jersey Avenue SE.,
                                                      mount pylon bolts using a method approved               airbus.com; Internet http://www.airbus.com.            Washington, DC 20590.
                                                      by the Manager, International Branch, ANM–              You may view this service information at the             • Hand Delivery: Deliver to Mail
                                                      116, Transport Airplane Directorate, FAA; or            FAA, Transport Airplane Directorate, 1601              address above between 9 a.m. and 5
                                                      the European Aviation Safety Agency                     Lind Avenue SW., Renton, WA. For                       p.m., Monday through Friday, except
                                                      (EASA); or Airbus’ EASA Design                          information on the availability of this
                                                      Organization Approval (DOA).                                                                                   Federal holidays.
                                                                                                              material at the FAA, call 425–227–1221.
                                                         Note 1 to paragraph (g) of this AD:                                                                           For service information identified in
                                                      Additional guidance for the re-torque can be              Issued in Renton, Washington, on June 3,             this proposed AD, contact Boeing
                                                      found in Airbus A318/A319/A320/A321                     2015.                                                  Commercial Airplanes, Attention: Data
                                                      AMM Temporary Revision 71–030, dated                    Michael Kaszycki,                                      & Services Management, P. O. Box 3707,
                                                      March 14, 2014, or Airbus A318/A319/A320/               Acting Manager, Transport Airplane                     MC 2H–65, Seattle, WA 98124–2207;
                                                      A321 AMM Task 71–00–00–400–040–A01,                     Directorate, Aircraft Certification Service.           phone: 206–544–5000, extension 1; fax:
                                                      ‘‘Installation of the Power Plant with Engine           [FR Doc. 2015–14228 Filed 6–12–15; 8:45 am]            206–766–5680; Internet https://
                                                      Positioner TWW 75E,’’ dated May 2014.
                                                                                                              BILLING CODE 4910–13–P                                 www.myboeingfleet.com. You may view
                                                      (h) Parts Installation Limitation                                                                              this referenced service information at
                                                        As of the effective date of this AD, no                                                                      the FAA, Transport Airplane
                                                      person may install a CFM56–5 engine, on any             DEPARTMENT OF TRANSPORTATION                           Directorate, 1601 Lind Avenue SW.,
                                                      airplane, unless the engine is installed in                                                                    Renton, WA. For information on the
                                                      accordance with the Accomplishment                      Federal Aviation Administration                        availability of this material at the FAA,
                                                      Instructions of Airbus Service Bulletin A320–                                                                  call 425–227–1221. It is also available
                                                      71–1063, including Appendix 01, dated                   14 CFR Part 39
                                                      August 13, 2014.
                                                                                                                                                                     on the Internet at http://
                                                                                                              [Docket No. FAA–2015–1428; Directorate                 www.regulations.gov by searching for
                                                      (i) Other FAA AD Provisions                             Identifier 2015–NM–026–AD]                             and locating Docket No. FAA–2015–
                                                         The following provisions also apply to this                                                                 1428.
                                                      AD:                                                     RIN 2120–AA64
                                                         (1) Alternative Methods of Compliance                                                                       Examining the AD Docket
                                                      (AMOCs): The Manager, International                     Airworthiness Directives; The Boeing
                                                                                                                                                                        You may examine the AD docket on
                                                      Branch, ANM–116, Transport Airplane                     Company Airplanes
                                                                                                                                                                     the Internet at http://
                                                      Directorate, FAA, has the authority to
                                                                                                              AGENCY: Federal Aviation                               www.regulations.gov by searching for
                                                      approve AMOCs for this AD, if requested
                                                      using the procedures found in 14 CFR 39.19.             Administration (FAA), DOT.                             and locating Docket No. FAA–2015–
                                                      In accordance with 14 CFR 39.19, send your              ACTION: Notice of proposed rulemaking                  1428; or in person at the Docket
                                                      request to your principal inspector or local            (NPRM).                                                Management Facility between 9 a.m.
                                                      Flight Standards District Office, as                                                                           and 5 p.m., Monday through Friday,
                                                      appropriate. If sending information directly            SUMMARY:   We propose to adopt a new                   except Federal holidays. The AD docket
                                                      to the International Branch, send it to ATTN:           airworthiness directive (AD) for certain               contains this proposed AD, the
                                                      Sanjay Ralhan, Aerospace Engineer,                      The Boeing Company Model 777–200                       regulatory evaluation, any comments
                                                      International Branch, ANM–116, Transport
                                                                                                              and –300 series airplanes. This                        received, and other information. The
                                                      Airplane Directorate, FAA, 1601 Lind
                                                      Avenue SW., Renton, WA 98057–3356;                      proposed AD was prompted by reports                    street address for the Docket Office
                                                      telephone: 425–227–1405; fax: 425–227–                  of fatigue cracking of a certain chord of              (phone: 800–647–5527) is in the
                                                      1149. Information may be emailed to: 9-                 the pivot bulkhead. This proposed AD                   ADDRESSES section. Comments will be
                                                      ANM-116-AMOC-REQUESTS@faa.gov.                          would require repetitive inspections for               available in the AD docket shortly after
                                                      Before using any approved AMOC, notify                  cracking of the left side and right side               receipt.
                                                      your appropriate principal inspector, or                forward outer chords of the pivot                      FOR FURTHER INFORMATION CONTACT:
                                                      lacking a principal inspector, the manager of           bulkhead, and related investigative and
                                                      the local flight standards district office/
                                                                                                                                                                     Narinder Luthra, Aerospace Engineer,
                                                                                                              corrective actions if necessary. This                  Airframe Branch, ANM–120S, FAA,
                                                      certificate holding district office. The AMOC
                                                      approval letter must specifically reference             proposed AD provides a modification of                 Seattle Aircraft Certification Office
                                                      this AD.                                                the pivot bulkhead, which would                        (ACO), 1601 Lind Avenue SW., Renton,
                                                         (2) Contacting the Manufacturer: For any             terminate the repetitive inspections. We               WA 98057–3356; phone: 425–917–6513;
                                                      requirement in this AD to obtain corrective             are proposing this AD to detect and                    fax: 425–917–6590; email:
                                                      actions from a manufacturer, the action must            correct fatigue cracking of the outer                  narinder.luthra@faa.gov.
                                                      be accomplished using a method approved                 flanges of the left and right side forward
                                                      by the Manager, International Branch, ANM–                                                                     SUPPLEMENTARY INFORMATION:
                                                                                                              outer chords of the pivot bulkhead,
asabaliauskas on DSK5VPTVN1PROD with PROPOSALS




                                                      116, Transport Airplane Directorate, FAA; or
                                                                                                              which could result in a severed forward                Comments Invited
                                                      the EASA; or Airbus’s EASA DOA. If
                                                      approved by the DOA, the approval must                  outer chord and consequent loss of                       We invite you to send any written
                                                      include the DOA-authorized signature.                   horizontal stabilizer control.                         relevant data, views, or arguments about
                                                                                                              DATES: We must receive comments on                     this proposal. Send your comments to
                                                      (j) Related Information
                                                                                                              this proposed AD by July 30, 2015.                     an address listed under the ADDRESSES
                                                         (1) Refer to Mandatory Continuing
                                                      Airworthiness Information (MCAI) EASA                   ADDRESSES: You may send comments,                      section. Include ‘‘Docket No. FAA–
                                                      Airworthiness Directive 2014–0258, dated                using the procedures found in 14 CFR                   2015–1428; Directorate Identifier 2015–
                                                      November 28, 2014, for related information.             11.43 and 11.45, by any of the following               NM–026–AD’’ at the beginning of your
                                                      This MCAI may be found in the AD docket                 methods:                                               comments. We specifically invite


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                                                      34104                    Federal Register / Vol. 80, No. 114 / Monday, June 15, 2015 / Proposed Rules

                                                      comments on the overall regulatory,                     STA 2370 pivot bulkhead by replacing                   from other tasks in the service
                                                      economic, environmental, and energy                     the left and right side forward outer                  information is expected to improve an
                                                      aspects of this proposed AD. We will                    chords and upper splice angles, and                    owner’s/operator’s understanding of
                                                      consider all comments received by the                   related investigative and corrective                   crucial AD requirements and help
                                                      closing date and may amend this                         actions.                                               provide consistent judgment in AD
                                                      proposed AD because of those                              This service information is reasonably               compliance. The steps identified as RC
                                                      comments.                                               available because the interested parties               (required for compliance) in any service
                                                        We will post all comments we                          have access to it through their normal                 information identified previously have a
                                                      receive, without change, to http://                     course of business or by the means                     direct effect on detecting, preventing,
                                                      www.regulations.gov, including any                      identified in the ADDRESSES section of                 resolving, or eliminating an identified
                                                      personal information you provide. We                    this NPRM.                                             unsafe condition.
                                                      will also post a report summarizing each                                                                          For service information that contains
                                                      substantive verbal contact we receive                   FAA’s Determination
                                                                                                                                                                     steps that are labeled as Required for
                                                      about this proposed AD.                                   We are proposing this AD because we                  Compliance (RC), the following
                                                                                                              evaluated all the relevant information                 provisions apply: (1) The steps labeled
                                                      Discussion                                              and determined the unsafe condition                    as RC, including substeps under an RC
                                                         We received reports of fatigue                       described previously is likely to exist or             step and any figures identified in an RC
                                                      cracking of the forward outer chord of                  develop in other products of these same                step, must be done to comply with the
                                                      the STA 2370 pivot bulkhead. Cracks in                  type designs.                                          AD, and an AMOC is required for any
                                                      the forward outer chords of the STA
                                                                                                              Proposed AD Requirements                               deviations to RC steps, including
                                                      2370 pivot bulkhead that are not found
                                                                                                                                                                     substeps and identified figures; and (2)
                                                      and repaired can become large and                          This proposed AD would require
                                                                                                                                                                     steps not labeled as RC may be deviated
                                                      result in a severed forward outer chord.                accomplishing the actions specified in
                                                                                                                                                                     from using accepted methods in
                                                      The cracks were caused by a stress                      the service information described
                                                                                                                                                                     accordance with the operator’s
                                                      concentration, which is generated at the                previously, except as discussed under
                                                                                                                                                                     maintenance or inspection program
                                                      transition radius of the forward outer                  ‘‘Differences Between this Proposed AD
                                                                                                                                                                     without obtaining approval of an
                                                      flange of the chord prior to the chord                  and the Service Information.’’ Refer to
                                                                                                                                                                     AMOC, provided the RC steps,
                                                      splice at the upper longeron. Since the                 this service information for details on
                                                                                                                                                                     including substeps and identified
                                                      horizontal stabilizer is attached to the                the procedures and compliance times.
                                                                                                                 The phrase ‘‘related investigative                  figures, can still be done as specified,
                                                      STA 2370 bulkhead at two pivot
                                                                                                              actions’’ is used in this proposed AD.                 and the airplane can be put back in an
                                                      locations, fatigue cracking of the outer
                                                                                                              ‘‘Related investigative actions’’ are                  airworthy condition.
                                                      flanges of the left and right side forward
                                                      outer chords of the STA 2370 pivot                      follow-on actions that (1) are related to              Differences Between This Proposed AD
                                                      bulkhead, if not corrected, could result                the primary actions, and (2) further                   and the Service Information
                                                      in a severed forward outer chord and                    investigate the nature of any condition
                                                                                                              found. Related investigative actions in                   The service bulletin specifies to
                                                      consequent loss of horizontal stabilizer                                                                       contact the manufacturer for
                                                      control.                                                an AD could include, for example,
                                                                                                              inspections.                                           instructions on how to repair certain
                                                      Related Service Information Under 1                        The phrase ‘‘corrective actions’’ is                conditions, but this proposed AD would
                                                      CFR Part 51                                             used in this proposed AD. ‘‘Corrective                 require repairing those conditions in
                                                        We reviewed the following Boeing                      actions’’ are actions that correct or                  one of the following ways:
                                                      service information.                                    address any condition found. Corrective                   • In accordance with a method that
                                                        • Boeing Alert Service Bulletin 777–                  actions in an AD could include, for                    we approve; or
                                                      53A0075, dated January 14, 2015,                        example, repairs.                                         • Using data that meet the
                                                      describes procedures for repetitive                                                                            certification basis of the airplane, and
                                                      detailed and high frequency eddy                        Explanation of ‘‘RC’’ Steps in Service                 that have been approved by the Boeing
                                                      current (HFEC) inspections for cracking                 Information                                            Commercial Airplanes Organization
                                                      of the outer flanges of the left and right                The FAA worked in conjunction with                   Designation Authorization (ODA) whom
                                                      side forward outer chords of the STA                    industry, under the Airworthiness                      we have authorized to make those
                                                      2370 pivot bulkhead, repetitive post-                   Directive Implementation Aviation                      findings.
                                                      repair inspections for certain airplanes,               Rulemaking Committee (ARC), to
                                                                                                                                                                     Costs of Compliance
                                                      and related investigative and corrective                enhance the AD system. One
                                                      actions.                                                enhancement was a new process for                         We estimate that this proposed AD
                                                        • Boeing Service Bulletin 777–53–                     annotating which steps in the service                  affects 60 airplanes of U.S. registry.
                                                      0076, dated January 14, 2015, describes                 information are required for compliance                   We estimate the following costs to
                                                      procedures for a modification of the                    with an AD. Differentiating these steps                comply with this proposed AD:

                                                                                                                            ESTIMATED COSTS
                                                                   Action                                Labor cost                Parts cost              Cost per product               Cost on U.S. operators
asabaliauskas on DSK5VPTVN1PROD with PROPOSALS




                                                      Inspections of left and right         Up to 15 work-hours × $85                        $0     Up to $1,275 per inspection        Up to $76,500 per inspection
                                                        side pivot bulkhead forward           per hour = $1,275 per in-                               cycle.                             cycle.
                                                        chord.                                spection cycle.
                                                      Post-Repair Inspections ..........    Up to 11 work-hours × $85                           0   Up to $935 per inspection          Up to $56,100 per inspection
                                                                                              per hour = $935 per inspec-                             cycle.                             cycle.
                                                                                              tion cycle.




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                                                                                     Federal Register / Vol. 80, No. 114 / Monday, June 15, 2015 / Proposed Rules                                                        34105

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

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

                                                      Small crack repair ..........................................................   Up to 45 work-hours × $85 per hour = $3,825 per                      (1)   Up to $7,650.
                                                                                                                                        side.
                                                      Modification of the STA 2370 Pivot Bulkhead (forward                            Up to 137 work-hours × $85 per hour = $11,645 ........          $34,086    Up to $45,731.
                                                       outer chord replacement).
                                                       1 We have received no definitive data that would enable us to provide parts cost estimates for the on-condition repair specified in this proposed
                                                      AD.


                                                        According to the manufacturer, some                                  (4) Will not have a significant                      in a severed forward outer chord and
                                                      of the costs of this proposed AD may be                              economic impact, positive or negative,                 consequent loss of horizontal stabilizer
                                                      covered under warranty, thereby                                      on a substantial number of small entities              control.
                                                      reducing the cost impact on affected                                 under the criteria of the Regulatory                   (f) Compliance
                                                      individuals. We do not control warranty                              Flexibility Act.                                          Comply with this AD within the
                                                      coverage for affected individuals. As a                                                                                     compliance times specified, unless already
                                                                                                                           List of Subjects in 14 CFR Part 39
                                                      result, we have included all costs in our                                                                                   done.
                                                      cost estimate.                                                         Air transportation, Aircraft, Aviation
                                                                                                                           safety, Incorporation by reference,                    (g) Inspections and Corrective Actions
                                                      Authority for This Rulemaking                                        Safety.                                                   At the times specified in table 1 of
                                                         Title 49 of the United States Code                                                                                       paragraph 1.E., ‘‘Compliance,’’ of Boeing
                                                      specifies the FAA’s authority to issue                               The Proposed Amendment                                 Alert Service Bulletin 777–53A0075, dated
                                                                                                                             Accordingly, under the authority                     January 14, 2015, except as provided in
                                                      rules on aviation safety. Subtitle I,
                                                                                                                                                                                  paragraph (j)(1) of this AD: Do a detailed
                                                      section 106, describes the authority of                              delegated to me by the Administrator,                  inspection and high frequency eddy current
                                                      the FAA Administrator. Subtitle VII:                                 the FAA proposes to amend 14 CFR part                  (HFEC) inspections for cracking of the left
                                                      Aviation Programs, describes in more                                 39 as follows:                                         and right side forward outer chords of the
                                                      detail the scope of the Agency’s                                                                                            STA 2370 pivot bulkhead, and do all
                                                      authority.                                                           PART 39—AIRWORTHINESS                                  applicable related investigative and
                                                         We are issuing this rulemaking under                              DIRECTIVES                                             corrective actions, in accordance with the
                                                      the authority described in Subtitle VII,                                                                                    Accomplishment Instructions of Boeing Alert
                                                      Part A, Subpart III, Section 44701:                                  ■ 1. The authority citation for part 39                Service Bulletin 777–53A0075, dated January
                                                      ‘‘General requirements.’’ Under that                                 continues to read as follows:                          14, 2015, except as provided in paragraph
                                                                                                                               Authority: 49 U.S.C. 106(g), 40113, 44701.         (j)(2) of this AD. Do all applicable related
                                                      section, Congress charges the FAA with                                                                                      investigative and corrective actions before
                                                      promoting safe flight of civil aircraft in                                                                                  further flight. Repeat the inspections
                                                                                                                           § 39.13     [Amended]
                                                      air commerce by prescribing regulations                                                                                     thereafter at the applicable intervals specified
                                                      for practices, methods, and procedures                               ■ 2. The FAA amends § 39.13 by adding
                                                                                                                                                                                  in table 1 of paragraph 1.E., ‘‘Compliance,’’
                                                      the Administrator finds necessary for                                the following new airworthiness                        of Boeing Alert Service Bulletin 777–
                                                      safety in air commerce. This regulation                              directive (AD):                                        53A0075, dated January 14, 2015, until the
                                                      is within the scope of that authority                                The Boeing Company: Docket No. FAA–                    modification specified in paragraph (i) of this
                                                      because it addresses an unsafe condition                                 2015–1428; Directorate Identifier 2015–            AD is done.
                                                      that is likely to exist or develop on                                    NM–026–AD.                                         (h) Post-Repair Inspections
                                                      products identified in this rulemaking                               (a) Comments Due Date                                     For airplanes on which a repair specified
                                                      action.                                                                We must receive comments by July 30,                 in Part 2 of the Accomplishment Instructions
                                                                                                                           2015.                                                  of Boeing Alert Service Bulletin 777–
                                                      Regulatory Findings                                                                                                         53A0075 has been done: At the times
                                                        We determined that this proposed AD                                (b) Affected ADs                                       specified in table 2 of paragraph 1.E.,
                                                      would not have federalism implications                                 None.                                                ‘‘Compliance,’’ of Boeing Alert Service
                                                      under Executive Order 13132. This                                                                                           Bulletin 777–53A0075, dated January 14,
                                                                                                                           (c) Applicability                                      2015, do a surface HFEC inspection, an open-
                                                      proposed AD would not have a
                                                                                                                              This AD applies to The Boeing Company               hole HFEC inspection, and a detailed
                                                      substantial direct effect on the States, on                                                                                 inspection for cracking of the left side and
                                                                                                                           Model 777–200 and –300 series airplanes,
                                                      the relationship between the national                                certificated in any category, as identified in         right side forward outer chords of the STA
                                                      Government and the States, or on the                                 Boeing Alert Service Bulletin 777–53A0075,             2370 pivot bulkhead, and do all applicable
                                                      distribution of power and                                            dated January 14, 2015.                                related investigative and corrective actions,
                                                      responsibilities among the various                                                                                          in accordance with Part 3 of the
                                                                                                                           (d) Subject                                            Accomplishment Instructions of Boeing Alert
                                                      levels of government.
                                                                                                                             Air Transport Association (ATA) of                   Service Bulletin 777–53A0075, dated January
asabaliauskas on DSK5VPTVN1PROD with PROPOSALS




                                                        For the reasons discussed above, I
                                                      certify this proposed regulation:                                    America Code 53, Fuselage.                             14, 2015, except as required by paragraph
                                                        (1) Is not a ‘‘significant regulatory                                                                                     (j)(2) of this AD. Do all applicable related
                                                                                                                           (e) Unsafe Condition                                   investigative and corrective actions before
                                                      action’’ under Executive Order 12866,                                   This AD was prompted by reports of                  further flight. Repeat the inspections
                                                        (2) Is not a ‘‘significant rule’’ under                            fatigue cracking of the forward outer chord of         thereafter at the applicable times specified in
                                                      the DOT Regulatory Policies and                                      the station (STA) 2370 pivot bulkhead. We              table 2 of paragraph 1.E., ‘‘Compliance,’’ of
                                                      Procedures (44 FR 11034, February 26,                                are issuing this AD to detect and correct              Boeing Alert Service Bulletin 777–53A0075,
                                                      1979),                                                               fatigue cracking of the outer flanges of the left      dated January 14, 2015, until the
                                                        (3) Will not affect intrastate aviation                            and right side forward outer chords of the             modification specified in paragraph (i) of this
                                                      in Alaska, and                                                       STA 2370 pivot bulkhead, which could result            AD is done.



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                                                      34106                    Federal Register / Vol. 80, No. 114 / Monday, June 15, 2015 / Proposed Rules

                                                      (i) Terminating Action                                     (ii) Steps not labeled as RC may be                 prevent an ignition source in the fuel
                                                         Modifying the STA 2370 pivot bulkhead by             deviated from using accepted methods in                tank vapor space, which could result in
                                                      replacing the left and right side forward outer         accordance with the operator’s maintenance             a fuel tank explosion and consequent
                                                      chords and upper splice angles, and doing all           or inspection program without obtaining
                                                                                                                                                                     loss of the airplane.
                                                      applicable related investigative and                    approval of an AMOC, provided the RC steps,
                                                      corrective actions, terminates the repetitive           including substeps and identified figures, can         DATES:  We must receive comments on
                                                      inspections required by paragraphs (g) and              still be done as specified, and the airplane           this proposed AD by July 30, 2015.
                                                      (h) of this AD for the modified location only.          can be put back in an airworthy condition.
                                                                                                                                                                     ADDRESSES:   You may send comments,
                                                      The modification must be done in                        (l) Related Information                                using the procedures found in 14 CFR
                                                      accordance with the Accomplishment
                                                      Instructions of Boeing Service Bulletin 777–               (1) For more information about this AD,             11.43 and 11.45, by any of the following
                                                      53–0076, dated January 14, 2015, except as              contact Narinder Luthra, Aerospace Engineer,           methods:
                                                      required by paragraph (j)(2) of this AD.                Airframe Branch, ANM–120S, FAA, Seattle                   • Federal eRulemaking Portal: Go to
                                                                                                              ACO, 1601 Lind Avenue SW., Renton, WA                  http://www.regulations.gov. Follow the
                                                      (j) Exceptions to Service Bulletin                      98057–3356; phone: 425–917–6513; fax: 425–
                                                      Specifications                                          917–6590; email: narinder.luthra@faa.gov.
                                                                                                                                                                     instructions for submitting comments.
                                                         (1) Where Boeing Alert Service Bulletin                 (2) For service information identified in              • Fax: 202–493–2251.
                                                      777–53A0075, dated January 14, 2015,                    this AD, contact Boeing Commercial                        • Mail: U.S. Department of
                                                      specifies a compliance time ‘‘after the                 Airplanes, Attention: Data & Services                  Transportation, Docket Operations, M–
                                                      Original Issue date of this Service Bulletin,’’         Management, P.O. Box 3707, MC 2H–65,                   30, West Building Ground Floor, Room
                                                      this AD requires compliance within the                  Seattle, WA 98124–2207; phone: 206–544–                W12–140, 1200 New Jersey Avenue SE.,
                                                      specified compliance time after the effective           5000, extension 1; fax: 206–766–5680;
                                                                                                              Internet https://www.myboeingfleet.com. You
                                                                                                                                                                     Washington, DC 20590.
                                                      date of this AD.
                                                         (2) Although Boeing Alert Service Bulletin           may view this referenced service information              • Hand Delivery: U.S. Department of
                                                      777–53A0075, dated January 14, 2015; and                at the FAA, Transport Airplane Directorate,            Transportation, Docket Operations, M–
                                                      Boeing Service Bulletin 777–530076, dated               1601 Lind Avenue SW., Renton, WA. For                  30, West Building Ground Floor, Room
                                                      January 14, 2015; specify to contact Boeing             information on the availability of this                W12–140, 1200 New Jersey Avenue SE.,
                                                      for appropriate action, and Boeing Alert                material at the FAA, call 425–227–1221.                Washington, DC, between 9 a.m. and 5
                                                      Service Bulletin 777–53A0075, dated January               Issued in Renton, Washington, on June 2,             p.m., Monday through Friday, except
                                                      14, 2015, specifies that action as ‘‘RC’’               2015.                                                  Federal holidays.
                                                      (Required for Compliance), this AD requires
                                                      repair before further flight using a method             Jeffrey E. Duven,                                         For service information identified in
                                                      approved in accordance with the procedures              Manager, Transport Airplane Directorate,               this proposed AD, contact Fokker
                                                      specified in paragraph (k) of this AD.                  Aircraft Certification Service.                        Services B.V., Technical Services Dept.,
                                                      (k) Alternative Methods of Compliance                   [FR Doc. 2015–14231 Filed 6–12–15; 8:45 am]            P.O. Box 1357, 2130 EL Hoofddorp, the
                                                      (AMOCs)                                                 BILLING CODE 4910–13–P                                 Netherlands; telephone +31 (0)88–6280–
                                                                                                                                                                     350; fax +31 (0)88–6280–111; email
                                                         (1) The Manager, Seattle Aircraft
                                                      Certification Office (ACO), FAA, has the
                                                                                                                                                                     technicalservices@fokker.com; Internet
                                                      authority to approve AMOCs for this AD, if              DEPARTMENT OF TRANSPORTATION                           http://www.myfokkerfleet.com. You may
                                                      requested using the procedures found in 14                                                                     view this referenced service information
                                                      CFR 39.19. In accordance with 14 CFR 39.19,             Federal Aviation Administration                        at the FAA, Transport Airplane
                                                      send your request to your principal inspector                                                                  Directorate, 1601 Lind Avenue SW.,
                                                      or local Flight Standards District Office, as           14 CFR Part 39                                         Renton, WA. For information on the
                                                      appropriate. If sending information directly            [Docket No. FAA–2015–1982; Directorate                 availability of this material at the FAA,
                                                      to the manager of the ACO, send it to the               Identifier 2014–NM–108–AD]                             call 425–227–1221.
                                                      attention of the person identified in
                                                      paragraph (l)(1) of this AD. Information may            RIN 2120–AA64                                          Examining the AD Docket
                                                      be emailed to: 9-ANM-Seattle-ACO-AMOC-
                                                      Requests@faa.gov.                                       Airworthiness Directives; Fokker                          You may examine the AD docket on
                                                         (2) Before using any approved AMOC,                  Services B.V. Airplanes                                the Internet at http://
                                                      notify your appropriate principal inspector,                                                                   www.regulations.gov by searching for
                                                      or lacking a principal inspector, the manager           AGENCY: Federal Aviation                               and locating Docket No. FAA–2015–
                                                      of the local flight standards district office/          Administration (FAA), DOT.                             1982; or in person at the Docket
                                                      certificate holding district office.                    ACTION: Notice of proposed rulemaking                  Operations office between 9 a.m. and 5
                                                         (3) An AMOC that provides an acceptable              (NPRM).                                                p.m., Monday through Friday, except
                                                      level of safety may be used for any repair
                                                                                                                                                                     Federal holidays. The AD docket
                                                      required by this AD if it is approved by the            SUMMARY:   We propose to adopt a new
                                                      Boeing Commercial Airplanes Organization                                                                       contains this proposed AD, the
                                                                                                              airworthiness directive (AD) for all                   regulatory evaluation, any comments
                                                      Designation Authorization (ODA) that has
                                                                                                              Fokker Services B.V. Model F.28 Mark                   received, and other information. The
                                                      been authorized by the Manager, Seattle
                                                      ACO, to make those findings. For a repair               1000, 2000, 3000, and 4000 airplanes.                  street address for the Docket Operations
                                                      method to be approved, the repair must meet             This proposed AD was prompted by a                     office (telephone 800–647–5527) is in
                                                      the certification basis of the airplane, and the        design review, which revealed that no                  the ADDRESSES section. Comments will
                                                      approval must specifically refer to this AD.            controlled bonding provisions are                      be available in the AD docket shortly
                                                         (4) Except as required by paragraph (j)(2)           present on a number of critical locations
asabaliauskas on DSK5VPTVN1PROD with PROPOSALS




                                                                                                                                                                     after receipt.
                                                      of this AD: For service information that                outside the fuel tank. This proposed AD
                                                      contains steps that are labeled as Required             would require installing additional and                FOR FURTHER INFORMATION CONTACT:   Tom
                                                      for Compliance (RC), the provisions of                  improved fuel system bonding                           Rodriguez, Aerospace Engineer,
                                                      paragraphs (k)(4)(i) and (k)(4)(ii) apply.
                                                                                                              provisions, and revising the airplane                  International Branch, ANM–116,
                                                         (i) The steps labeled as RC, including                                                                      Transport Airplane Directorate, FAA,
                                                      substeps under an RC step and any figures               maintenance or inspection program, as
                                                                                                              applicable, by incorporating fuel                      1601 Lind Avenue SW., Renton, WA
                                                      identified in an RC step, must be done to                                                                      98057–3356; telephone 425–227–1137;
                                                      comply with the AD. An AMOC is required                 airworthiness limitation items and
                                                      for any deviations to RC steps, including               critical design configuration control                  fax 425–227–1149.
                                                      substeps and identified figures.                        limitations. We are proposing this AD to               SUPPLEMENTARY INFORMATION:



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Document Created: 2015-12-15 15:14:01
Document Modified: 2015-12-15 15:14:01
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 30, 2015.
ContactNarinder Luthra, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6513; fax: 425-917-6590; email: [email protected]
FR Citation80 FR 34103 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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