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Published 2015-06-18 · Federal Register document 2015-14703

Airworthiness Directives; The Boeing Company Airplanes

Publication summary

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model and 777 airplanes. This AD was prompted by reports of uncommanded door closure of a large lower lobe cargo door. This AD requires inspecting for part numbers and serial numbers of the rotary actuators of the forward and aft large lower lobe cargo doors, as applicable, and corrective action if necessary. We are issuing this AD to detect and correct rotary actuators made with a material having poor actuator gear wear characteristics, which could result in failure of the rotary actuators for the forward or aft large lower lobe cargo doors and subsequent uncommanded door closure, which could possibly result in fatal injury to people on the ground.

Why this record is shown

Source: Federal Register annual FAA metadata. Acquired 2026-09-03T22:23:48.517946+00:00. The title, summary and date are source facts.

Source revision
federal_register_ad_metadata_2015-3bb842c840a7e6e6
Source row
results[133]
Raw source SHA-256
3bb842c840a7e6e6e43779ca68008e1e63ad8287ad840c3a981d1f66a934b14b

Final-rule publication

Recorded publication clauses

AD identifier printed in this edition
2015-12-11
Effective date printed in this edition
2015-07-23
Read 14 complete recorded clauses
Effective Date
(a) Effective Date

    This AD is effective July 23, 2015.

Exact source excerpt. Text positions 20829–20890, end exclusive, in the original decoded publication. SHA-256: 3d8f4126c21b52bfc7b4e2d5cf00539e9e69d142841184f8d756d2cbbec75e3f

Affected ADs
(b) Affected ADs

    None.

Exact source excerpt. Text positions 20890–20919, end exclusive, in the original decoded publication. SHA-256: 871a4afc60ceeae06e8010585055188633d616078500c45937092bfe892239c0

Applicability wording · Applicability
(c) Applicability

    This AD applies to The Boeing Company airplanes identified in 
paragraphs (c)(1) and (c)(2) of this AD, certificated in any 
category.
    (1) Model 767-200, -300, -300F, and -400ER series airplanes, as 
identified in Boeing Service Bulletin 767-52A0100, Revision 3, dated 
January 19, 2015.
    (2) Model 777-200, -200LR, -300, -300ER, and 777F series 
airplanes, as identified in Boeing Service Bulletin 777-52-0053, 
Revision 2, dated January 19, 2015.

Exact source excerpt. Text positions 20919–21399, end exclusive, in the original decoded publication. SHA-256: da358d4b25fea70fbd599518944bf3c37427c8b1d3402ba9ac1a11189501a967

Subject
(d) Subject

    Air Transport Association (ATA) of America Code 52, Doors.

Exact source excerpt. Text positions 21399–21476, end exclusive, in the original decoded publication. SHA-256: 5e35c9bbbc7962c0cf94533eeeae346ca9175b23f48cabd6baf4dbb152737888

Unsafe Condition
(e) Unsafe Condition

    This AD was prompted by reports of uncommanded door closure of a 
large lower lobe cargo door. We are issuing this AD to detect and 
correct rotary actuators made with a material having poor actuator 
gear wear characteristics, which could result in failure of the 
rotary actuators for the forward or aft large lower lobe cargo doors 
and subsequent uncommanded door closure, which could possibly result 
in fatal injury to people on the ground.

Exact source excerpt. Text positions 21476–21950, end exclusive, in the original decoded publication. SHA-256: fed9b07a6d69a370b91ca3ba44c0f6de78df82c674399faffc1d1a3c10bf22aa

Compliance
(f) Compliance

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

Exact source excerpt. Text positions 21950–22052, end exclusive, in the original decoded publication. SHA-256: 00fbfa31932483f627d0ce0a11cbd2e35e15d9231842b91ac85623ce533912d3

Inspection for Part Numbers, and Re-identification or Replacement, for Model 767 Airplanes
(g) Inspection for Part Numbers, and Re-identification or Replacement, 
for Model 767 Airplanes

    For Model 767-200, -300, -300F, and -400ER series airplanes: 
Within 30 months after the effective date of this AD, inspect each 
rotary actuator installed in the forward and aft large lower lobe 
cargo doors, as applicable, to determine the part number and serial 
number, and do all applicable corrective actions, in accordance with 
the Accomplishment Instructions of Boeing Service Bulletin 767-
52A0100, Revision 3, dated January 19, 2015; and Eaton Service 
Bulletin 692D100-52-4, Revision 3, dated August 14, 2014. Do the 
applicable corrective actions at the applicable time specified in 
paragraph 1.E., ``Compliance,'' of Boeing Service Bulletin 767-
52A0100, Revision 3, dated January 19, 2015, except as required by 
paragraph (i) of this AD. A review of maintenance records for the 
part number and serial number is acceptable in lieu of the 
inspection if the part and serial numbers of the rotary actuator can 
be conclusively determined from that review.

Exact source excerpt. Text positions 22052–23125, end exclusive, in the original decoded publication. SHA-256: ad2a6b1c6defe72d63bca7c204deeec654642620d9986e3a1ecd980d9189d42c

Inspection for Part Numbers, and Re-Identification or Replacement, for Model 777 Airplanes
(h) Inspection for Part Numbers, and Re-Identification or Replacement, 
for Model 777 Airplanes

    For Model 777-200, -200LR, -300, -300ER, and 777F series 
airplanes: Within 72 months after the effective date of this AD, 
inspect each rotary actuator installed in the forward and aft large 
lower lobe cargo doors, as applicable, to determine the part number 
and serial number, and do all applicable corrective actions, in 
accordance with the Accomplishment Instructions of Boeing Service 
Bulletin 777-52-0053, Revision 2, dated January 19, 2015; and Eaton 
Service Bulletin 692D100-52-4, Revision 3, dated August 14, 2014. Do 
the applicable corrective actions at the applicable time specified 
in paragraph 1.E., ``Compliance,'' of Boeing Service Bulletin 777-
52-0053, Revision 2, dated January 19, 2015, except as required by 
paragraph (i) of this AD. A review of maintenance records for the 
part number and serial number is acceptable in lieu of the 
inspection if the part and serial numbers of the rotary actuator can 
be conclusively determined from that review.

Exact source excerpt. Text positions 23125–24205, end exclusive, in the original decoded publication. SHA-256: 74f5bef13be9ad7dbbb544246b84dd179a499dadb24af03d0ad1f18cd000e88a

Exception to the Service Information
(i) Exception to the Service Information

    Where Boeing Service Bulletin 767-52A0100, Revision 3, dated 
January 19, 2015; and Boeing Service Bulletin 777-52-0053, Revision 
2, dated January 19, 2015, specify a compliance time after the issue 
date ``of this service bulletin,'' this AD requires compliance 
within the specified compliance time after the effective date of 
this AD.

Exact source excerpt. Text positions 24205–24592, end exclusive, in the original decoded publication. SHA-256: b7a889e054b05be44d456e39dec643187f9a20dbdccee6a4e3435b2ff7fdb663

Credit for Previous Actions
(j) Credit for Previous Actions

    (1) This paragraph provides credit for the actions required by 
paragraph (g) of this AD, if the actions were performed before the 
effective date of this AD using Boeing Service Bulletin 767-52A0100, 
Revision 2, dated September 26, 2013; and Eaton Service Bulletin 
692D100-52-4, Revision 2, dated August 1, 2013. This service 
information is not incorporated by reference in this AD.
    (2) This paragraph provides credit for the actions required by 
paragraph (h) of this AD, if the actions were performed before the

[[Page 34831]]

effective date of this AD using Boeing Service Bulletin 777-52-0053, 
Revision 1, dated September 26, 2013; and Eaton Service Bulletin 
692D100-52-4, Revision 2, dated August 1, 2013. This service 
information is not incorporated by reference in this AD.

Exact source excerpt. Text positions 24592–25424, end exclusive, in the original decoded publication. SHA-256: d6a1b98050b0f8fc82081065270031a624674dea13b0e2d6f61f0af76d1ade7b

Parts Installation Prohibition
(k) Parts Installation Prohibition

    As of the effective date of this AD, no rotary actuator having 
Boeing part number S135W132-3 (supplier part number 692D100-13) may 
be installed on any airplane.

Exact source excerpt. Text positions 25424–25628, end exclusive, in the original decoded publication. SHA-256: 673f75fca918fbdc31aa35b280806b155e08f294405526ebdbdc405da2499f0d

Alternative Methods of Compliance (AMOCs)
(l) 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 (m)(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.

Exact source excerpt. Text positions 25628–26845, end exclusive, in the original decoded publication. SHA-256: 55207eadeb7a6ca845d0cfdc903e5980de84073fa5885adab8d009a0df43ad40

Related Information
(m) Related Information

    (1) For more information about this AD, contact Susan Monroe, 
Aerospace Engineer, Cabin Safety and Environmental Systems Branch, 
ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind 
Avenue SW., Renton, WA 98057-3356; phone: 425-917-6457; fax: 425-
917-6590; email: [email protected].
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the applicable addresses 
specified in paragraphs (n)(3), (n)(4), and (n)(5) of this AD.

Exact source excerpt. Text positions 26845–27367, end exclusive, in the original decoded publication. SHA-256: 93bcf814941c1cb6e8ff0d41b140d44218388e336d3731f3ee0f821635c649e7

Material Incorporated by Reference
(n) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Boeing Service Bulletin 767-52A0100, Revision 3, dated 
January 19, 2015.
    (ii) Boeing Service Bulletin 777-52-0053, Revision 2, dated 
January 19, 2015.
    (iii) Eaton Service Bulletin 692D100-52-4, Revision 3, dated 
August 14, 2014.
    (3) For Boeing 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; 
telephone 206-544-5000, extension 1; fax 206-766-5680; Internet 
https://www.myboeingfleet.com.
    (4) For Eaton service information identified in this AD, contact 
Eaton Corporation, Aerospace Operations, 3 Park Plaza, Suite 1200, 
Irvine, CA 92614; telephone 949-253-2100; fax 949-253-2111; Internet 
http://www.eaton.com.
    (5) You may view this service information at FAA, the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, 
Washington. For information on the availability of this material at 
the FAA, call 425-227-1221.
    (6) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

Exact source excerpt. Text positions 27367–29016, end exclusive, in the original decoded publication. SHA-256: 0d6ce3b343733c65abda9fc17a724ce8f1e81af8308f749d8417881a9c6030d4

No replacement link has been established from this edition. The complete historical rule chain and current legal effect remain unknown.

Find all recorded historical references to AD 2015-12-11 · 0 printed reference observations in this pinned collection.

These are observations from one dated publication. Current legal status is unknown; aircraft applicability, installed configuration, compliance and burden require separate evidence. Missing or unparsed conditions remain unknown.

Why these observations are shown

They were extracted offline from the same immutable official HTML source as the complete recorded text. The dated source wording, original text coordinates and exact quote digests are retained. PDF/text agreement and current regulatory effect have not been qualified.

Observation revision: whole-ad-publication-clause-observations-1.0.1. Text SHA-256: 6f45a89618f385b53994bf9c8d91ae3e433200eb1bfb7c0916f2151293b77e3d. Source manifest: 0fb7ef04f4eb4fcd50a7e2ebd12e3d4c9c095b273786757afbd07bcdb5639a43.

Official source · 2015-06-18

Publication text

This is the complete recorded text of this dated publication.

Current legal effect is unknown. Aircraft applicability, installed configuration and compliance require separate evidence. PDF/text agreement has not been evaluated.

Read the complete official publication text
[Federal Register Volume 80, Number 117 (Thursday, June 18, 2015)]
[Rules and Regulations]
[Pages 34827-34831]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-14703]


=======================================================================
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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-0426; Directorate Identifier 2013-NM-231-AD; 
Amendment 39-18186; AD 2015-12-11]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model and 777 airplanes. This AD was prompted by 
reports of uncommanded door closure of a large lower lobe cargo door. 
This AD requires inspecting for part numbers and serial numbers of the 
rotary actuators of the forward and aft large lower lobe cargo doors, 
as applicable, and corrective action if necessary. We are issuing this 
AD to detect and correct rotary actuators made with a material having 
poor actuator gear wear characteristics, which could result in failure 
of the rotary actuators for the forward or aft large lower lobe cargo 
doors and subsequent uncommanded door closure, which could possibly 
result in fatal injury to people on the ground.

DATES: This AD is effective July 23, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of July 23, 
2015.

ADDRESSES: For Boeing 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; telephone 
206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. For Eaton service information identified in this 
AD, contact Eaton Corporation, Aerospace Operations, 3 Park Plaza, 
Suite 1200, Irvine, CA 92614; telephone 949-253-2100; fax 949-253-2111; 
Internet http://www.eaton.com. You may view this referenced service 
information at the FAA, 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-2014-0426.

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-2014-
0426; 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 AD, the regulatory evaluation, any comments received, and 
other information. The address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, U.S. Department of Transportation, 
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 
New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Susan Monroe, Aerospace Engineer, 
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle 
Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6457; fax: 425-917-6590; email: 
[email protected].

[[Page 34828]]


SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain The Boeing Company 
Model and 777 airplanes. The NPRM published in the Federal Register on 
June 30, 2014 (79 FR 36678). The NPRM was prompted by reports of 
uncommanded door closure of a large lower lobe cargo door. The NPRM 
proposed to require inspecting for part numbers and serial numbers of 
the rotary actuators of the forward and aft large lower lobe cargo 
doors, as applicable, and corrective action if necessary. We are 
issuing this AD to detect and correct rotary actuators made with a 
material having poor actuator gear wear characteristics, which could 
result in failure of the rotary actuators for the forward or aft large 
lower lobe cargo door and subsequent uncommanded door closure, which 
could possibly result in injury to people on the ground.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM (79 
FR 36678, June 30, 2014) and the FAA's response to each comment.

Support for Rulemaking

    United Airlines stated that it concurs with the NPRM (79 FR 36678, 
June 30, 2014), and FedEx Express stated that it has no technical 
objections to incorporating the NPRM.

Request To Revise Compliance Time

    United Parcel Service (UPS) requested that the compliance time for 
Model 767 airplanes be revised from 30 months to 72 months to match the 
72-month compliance time for Model 777 airplanes. UPS stated that the 
same actuator part number is used on both Model 767 and Model 777 
airplanes and is modified by the same Eaton service information. UPS 
also contended that the same level of safety can be achieved because 
the compliance times are ``not based on flight cycles but on flight 
hours,'' and Model 767 and 777 fleets have common cargo door 
installations and functions.
    We do not agree with the commenter's request to revise the 
compliance time. The design of the door and the operating system of the 
door for the two models of airplane are different. The two models are 
subject to different actuator loading. In developing appropriate 
compliance times for this action, we considered the safety implications 
of each design for timely replacement of the actuators. Further, the 
compliance time matches Boeing's recommended compliance times. However, 
under the provisions of paragraph (l) of this AD, we will consider 
requests for approval of an extension of the compliance time if 
sufficient data are submitted to substantiate that the new compliance 
time would provide an acceptable level of safety. We have not changed 
the AD in this regard.

Request To Postpone Re-Identification for Already-Modified Parts

    Air France requested that operators who have checked their 
maintenance records and know which serial numbers are on the actuators 
in their fleet be allowed to keep ``post-AD'' actuators installed 
without being required to re-identify those actuators until those 
actuators are removed for other reasons. Air France stated that an 
operator that knows exactly which serial numbers are on the rotary 
actuators on its fleet is aware of which units have already been 
modified or not.
    We do not agree with the commenter's request to postpone re-
identification. The task to re-identify the actuator can be done 
without removing the actuator from the airplane. Re-identification of 
the actuators, as required by this AD, will ensure that the maintenance 
records match the airplane configuration. Delaying this re-
identification action introduces possible confusion. However, under the 
provisions of paragraph (l) of this AD, we will consider requests for 
approval of changes to the compliance time for re-identification if 
sufficient data are submitted to substantiate that the new compliance 
time would provide an acceptable level of safety. We have not changed 
the AD in this regard.

Request To Reference Updated Service Information With Correct Serial 
Numbers

    Eaton and Boeing stated that some actuator serial numbers were 
omitted from table 1, which identifies parts that do not need to be 
modified, in Eaton Service Bulletin 692D100-52-4, Revision 2, dated 
August 1, 2013. Boeing requested that the final rule be delayed until 
the Boeing and Eaton service information are revised to have the 
correct numbers. Boeing also stated that if the final rule is not 
delayed pending issuance of the revised service information, 
unnecessary actions might be performed on actuators not subject to the 
unsafe condition. Eaton stated that in table 1, two digits were 
transposed; what is listed as ``3173B'' should be ``3137B'' (i.e., 
``3173B--3813B'' should be ``3137B--3813B''). Eaton stated that this 
error omitted serial numbers (S/Ns) 3137 through 3172, which were made 
with the 9310 steel. Eaton stated that they also reviewed the records 
for S/N 2257 and found that it was modified by Eaton to contain the 
9310 steel and was re-identified as 2257B.
    We agree with the commenters' request to reference updated service 
information. We have received the revised service information, and 
agree to revise this final rule to refer to the corrected service 
information. We have reviewed Eaton Service Bulletin 692D100-52-4, 
Revision 3, dated August 14, 2014, which contains a revised table 1 
that corrects the transposed digits and includes the omitted serial 
numbers. We have also reviewed Boeing Service Bulletins 767-52A0100, 
Revision 3, dated January 19, 2015; and 777-52-0053, Revision 2, dated 
January 19, 2015; which update the reference to Eaton Service Bulletin 
692D100-52-4, Revision 3, dated August 14, 2014. The revised service 
information would provide relief for operators that have those omitted 
serial numbers. We have revised paragraphs (c), (g), (h), and (i) of 
this AD to refer to the revised service information and have added new 
paragraph (j) to this AD to provide credit for previous actions done 
using the service information referenced in the NPRM (79 FR 36678, June 
30, 2014). We have redesignated subsequent paragraphs accordingly.

Request To Grant Credit for Parts With Suffix B

    Emirates Airlines requested that credit for the actuator 
modification be granted for all actuators having part number (P/N) 
692D100-13, with serial numbers containing a suffix ``B.'' Emirates 
Airlines suggested that the required work for those ``suffix B'' 
actuators be limited to re-identification. Emirates Airlines stated 
that it found actuators having a suffix ``B'' installed on its Model 
777 fleet, but those actuators were not listed in table 1 of Eaton 
Service Bulletin 692D100-52-4, Revision 2, dated August 1, 2013. 
Emirates Airlines referenced section 52-34-02 of the Eaton Component 
Maintenance Manual (CMM), and stated that the CMM states ``all serial 
number 2907 and above are equipped with 692D190-5 no-back brake 
assemblies and the serial number will carry a suffix `B.' These units 
with a serial number `B' suffix incorporate ball detent match set P/N 
692C130-1.'' Emirates Airlines suggested that installation of no-back 
assemblies with P/N 692D190-5 during production, or repair using 
section 52-

[[Page 34829]]

34-02 of the Eaton CMM and Eaton Service Letter 692D100-13 would also 
address the unsafe condition.
    We do not agree to grant credit for all actuators with a ``B'' 
suffix. The revised Eaton service bulletin (Eaton Service Bulletin 
692D100-52-4, Revision 3, dated August 14, 2014) discussed previously 
did not include all serial numbers 2907 and above with a ``B'' suffix 
in table 1. We also have not received data to substantiate a change to 
expand the range of acceptable serial numbers. However, under the 
provisions of paragraph (l) of this AD, we will consider requests for 
approval of an alternative method of compliance if sufficient data are 
submitted to substantiate that the change would provide an acceptable 
level of safety. We have not changed this AD in this regard.

Request To Revise or Remove the Parts Installation Prohibition 
Paragraph

    UPS requested that the wording of the Parts Installation 
Prohibition paragraph (paragraph (j) for the NPRM (79 FR 36678, June 
30, 2014), which has been redesignated as paragraph (k) of this AD) be 
revised to read ``After the Terminating Date of the AD, Do NOT install 
a rotary actuator having Boeing part number. . .'' or that the 
paragraph be removed from the AD. UPS interpreted the proposed 
prohibition of ``As of the effective date of this AD, no rotary 
actuator having Boeing . . . may be installed on any airplane'' as 
prohibiting any of those actuators currently installed on the airplane 
to remain installed. UPS contended that if leaving an affected actuator 
on the airplane is acceptable for the duration of the AD, then 
installing another actuator with the same affected part number within 
the compliance time of the AD should be acceptable. UPS added that if 
paragraph (j) of the NPRM were removed or revised, then the concern 
about spare parts availability would be reduced.
    We disagree with the request to revise paragraph (k) of this AD, 
but provide the following clarification of the intent of paragraph (k) 
of this AD. Paragraph (k) of this AD does not address parts that are 
already on the airplane; instead, it affects the installation of an 
affected replacement rotary actuator done on or after the effective 
date of this AD. Simply taking a part off and then installing it back 
on the airplane as part of gaining access for some other maintenance 
activity not associated with this final rule is not regarded as an 
installation that is affected by paragraph (k) of this AD.
    In developing the technical information on which this final rule is 
based, we considered the availability of spare parts that this final 
rule will require and the compliance time, and found that sufficient 
parts are available. However, under the provisions of paragraph (l) of 
this AD, we will consider requests for approval of an extension of the 
compliance time if sufficient data are submitted to substantiate that 
the new compliance time would provide an acceptable level of safety. We 
have not changed this AD in this regard.

Effect of Winglets on Accomplishment of the Proposed Actions

    Aviation Partners Boeing stated that the installation of winglets 
per supplemental type certificate (STC) ST01920SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/59027F43B9A7486E86257B1D006591EE?OpenDocument&Highlight=st01920se) does 
not affect the accomplishment of the manufacturer's service 
instructions.
    We agree with the commenter that STC ST01920SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/59027F43B9A7486E86257B1D006591EE?OpenDocument&Highlight=st01920se) does 
not affect the accomplishment of the manufacturer's service 
instructions. Therefore, the installation of STC ST01920SE does not 
affect the ability to accomplish the actions required by this AD. We 
have not changed this AD in this regard.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD with the changes described previously and minor editorial 
changes. We have determined that these minor changes:
    <bullet> [Agr]re consistent with the intent that was proposed in 
the NPRM (79 FR 36678, June 30, 2014) for correcting the unsafe 
condition; and
    <bullet> Do not add any additional burden upon the public than was 
already proposed in the NPRM (79 FR 36678, June 30, 2014).
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Service Bulletins 767-52A0100, Revision 3, dated 
January 19, 2014; and 777-52-0053, Revision 2, dated January 19, 2015. 
The service information describe procedures for inspecting for part 
numbers and serial numbers of the rotary actuators of the forward and 
aft large lower lobe cargo doors, as applicable, and corrective action 
if necessary.
    Boeing Service Bulletins 767-52A0100, Revision 3, dated January 19, 
2015; and 777-52-0053, Revision 2, dated January 19, 2015; refer to 
Eaton Service Bulletin 692D100-52-4, Revision 3, dated August 14, 2014, 
which provides serial number information and procedures for doing 
certain corrective actions (rework of certain rotary actuators or re-
identification of certain other rotary actuators).
    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 
AD.

Costs of Compliance

    We estimate that this AD affects 510 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
              Action                     Labor cost            Parts cost           product         operators
----------------------------------------------------------------------------------------------------------------
Inspection for part number and      1 work-hour x $85     None................             $85          $43,350
 serial number.                      per hour = $85.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary re-
identification or replacements that would be required based on the 
results of the inspection. We have no way of determining the number of 
aircraft that might need these re-identifications or replacements:

[[Page 34830]]



                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                Action                        Labor cost             Parts cost           Cost per product
----------------------------------------------------------------------------------------------------------------
Re-identification....................  Up to 1 work-hour x $85                  $1  Up to $86.
                                        per hour = $85.
Replacement..........................  Up to 9 work-hours x $85             19,700  Up to $20,465.
                                        per hour = $765.
----------------------------------------------------------------------------------------------------------------

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

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

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

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

2015-12-11 The Boeing Company: Amendment 39-18186; Docket No. FAA-
2014-0426; Directorate Identifier 2013-NM-231-AD.

(a) Effective Date

    This AD is effective July 23, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company airplanes identified in 
paragraphs (c)(1) and (c)(2) of this AD, certificated in any 
category.
    (1) Model 767-200, -300, -300F, and -400ER series airplanes, as 
identified in Boeing Service Bulletin 767-52A0100, Revision 3, dated 
January 19, 2015.
    (2) Model 777-200, -200LR, -300, -300ER, and 777F series 
airplanes, as identified in Boeing Service Bulletin 777-52-0053, 
Revision 2, dated January 19, 2015.

(d) Subject

    Air Transport Association (ATA) of America Code 52, Doors.

(e) Unsafe Condition

    This AD was prompted by reports of uncommanded door closure of a 
large lower lobe cargo door. We are issuing this AD to detect and 
correct rotary actuators made with a material having poor actuator 
gear wear characteristics, which could result in failure of the 
rotary actuators for the forward or aft large lower lobe cargo doors 
and subsequent uncommanded door closure, which could possibly result 
in fatal injury to people on the ground.

(f) Compliance

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

(g) Inspection for Part Numbers, and Re-identification or Replacement, 
for Model 767 Airplanes

    For Model 767-200, -300, -300F, and -400ER series airplanes: 
Within 30 months after the effective date of this AD, inspect each 
rotary actuator installed in the forward and aft large lower lobe 
cargo doors, as applicable, to determine the part number and serial 
number, and do all applicable corrective actions, in accordance with 
the Accomplishment Instructions of Boeing Service Bulletin 767-
52A0100, Revision 3, dated January 19, 2015; and Eaton Service 
Bulletin 692D100-52-4, Revision 3, dated August 14, 2014. Do the 
applicable corrective actions at the applicable time specified in 
paragraph 1.E., ``Compliance,'' of Boeing Service Bulletin 767-
52A0100, Revision 3, dated January 19, 2015, except as required by 
paragraph (i) of this AD. A review of maintenance records for the 
part number and serial number is acceptable in lieu of the 
inspection if the part and serial numbers of the rotary actuator can 
be conclusively determined from that review.

(h) Inspection for Part Numbers, and Re-Identification or Replacement, 
for Model 777 Airplanes

    For Model 777-200, -200LR, -300, -300ER, and 777F series 
airplanes: Within 72 months after the effective date of this AD, 
inspect each rotary actuator installed in the forward and aft large 
lower lobe cargo doors, as applicable, to determine the part number 
and serial number, and do all applicable corrective actions, in 
accordance with the Accomplishment Instructions of Boeing Service 
Bulletin 777-52-0053, Revision 2, dated January 19, 2015; and Eaton 
Service Bulletin 692D100-52-4, Revision 3, dated August 14, 2014. Do 
the applicable corrective actions at the applicable time specified 
in paragraph 1.E., ``Compliance,'' of Boeing Service Bulletin 777-
52-0053, Revision 2, dated January 19, 2015, except as required by 
paragraph (i) of this AD. A review of maintenance records for the 
part number and serial number is acceptable in lieu of the 
inspection if the part and serial numbers of the rotary actuator can 
be conclusively determined from that review.

(i) Exception to the Service Information

    Where Boeing Service Bulletin 767-52A0100, Revision 3, dated 
January 19, 2015; and Boeing Service Bulletin 777-52-0053, Revision 
2, dated January 19, 2015, specify a compliance time after the issue 
date ``of this service bulletin,'' this AD requires compliance 
within the specified compliance time after the effective date of 
this AD.

(j) Credit for Previous Actions

    (1) This paragraph provides credit for the actions required by 
paragraph (g) of this AD, if the actions were performed before the 
effective date of this AD using Boeing Service Bulletin 767-52A0100, 
Revision 2, dated September 26, 2013; and Eaton Service Bulletin 
692D100-52-4, Revision 2, dated August 1, 2013. This service 
information is not incorporated by reference in this AD.
    (2) This paragraph provides credit for the actions required by 
paragraph (h) of this AD, if the actions were performed before the

[[Page 34831]]

effective date of this AD using Boeing Service Bulletin 777-52-0053, 
Revision 1, dated September 26, 2013; and Eaton Service Bulletin 
692D100-52-4, Revision 2, dated August 1, 2013. This service 
information is not incorporated by reference in this AD.

(k) Parts Installation Prohibition

    As of the effective date of this AD, no rotary actuator having 
Boeing part number S135W132-3 (supplier part number 692D100-13) may 
be installed on any airplane.

(l) 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 (m)(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.

(m) Related Information

    (1) For more information about this AD, contact Susan Monroe, 
Aerospace Engineer, Cabin Safety and Environmental Systems Branch, 
ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind 
Avenue SW., Renton, WA 98057-3356; phone: 425-917-6457; fax: 425-
917-6590; email: [email protected].
    (2) Service information identified in this AD that is not 
incorporated by reference is available at the applicable addresses 
specified in paragraphs (n)(3), (n)(4), and (n)(5) of this AD.

(n) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Boeing Service Bulletin 767-52A0100, Revision 3, dated 
January 19, 2015.
    (ii) Boeing Service Bulletin 777-52-0053, Revision 2, dated 
January 19, 2015.
    (iii) Eaton Service Bulletin 692D100-52-4, Revision 3, dated 
August 14, 2014.
    (3) For Boeing 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; 
telephone 206-544-5000, extension 1; fax 206-766-5680; Internet 
https://www.myboeingfleet.com.
    (4) For Eaton service information identified in this AD, contact 
Eaton Corporation, Aerospace Operations, 3 Park Plaza, Suite 1200, 
Irvine, CA 92614; telephone 949-253-2100; fax 949-253-2111; Internet 
http://www.eaton.com.
    (5) You may view this service information at FAA, the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, 
Washington. For information on the availability of this material at 
the FAA, call 425-227-1221.
    (6) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on June 9, 2015.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-14703 Filed 6-17-15; 8:45 am]
 BILLING CODE 4910-13-P


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