AD 2014-05-19
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-200B Series | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | The Boeing Company | 747-200F Series | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | The Boeing Company | 747-300 Series | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | The Boeing Company | 747-400F Series | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | The Boeing Company | 747SP Series | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | The Boeing Company | 767-300 Series | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Multiple reports of uncommanded thrust reverser unlock events, which could lead to uncommanded thrust reverser deployment during takeoff or in flight, resulting in decreased airplane control and performance, possible runway excursions, and failure to climb.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace certain relays and relay sockets, and perform wiring changes. For certain airplanes, install new relay panels and remove/install certain components. Additionally, for certain airplanes, install an additional locking system on the thrust reversers and modify system wiring for in-flight fault indications of the thrust reverser system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
The Boeing Company Model 747-200B, 747-200F, 747-300, 747SP, 747-400, 747-400F series airplanes equipped with Rolls-Royce RB211-524 engines; and certain Model 767-300 series airplanes equipped with Rolls-Royce RB211-524 engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-200B, 747-200F, 747-300, 747SP, 747-400, and 747-400F series airplanes equipped with Rolls-Royce RB211-524 engines; and certain Model 767-300 series airplanes equipped with Rolls-Royce RB211-524 engines. This AD was prompted by multiple reports of uncommanded thrust reverser unlock events. This AD requires replacing certain relays and relay sockets, and doing wiring changes. For certain airplanes, this AD also requires installing new relay panels, and removing and installing certain components. Additionally, this AD requires, for certain airplanes, accomplishing concurrent actions, which include installing an additional locking system on the thrust reversers and modifying system wiring for in-flight fault indications of the thrust reverser system. We are issuing this AD to prevent an uncommanded thrust reverser deployment during takeoff or in flight, resulting in decreased airplane control and performance, possible runway excursions, and failure to climb.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to The Boeing Company airplanes, certificated in
any category, identified in paragraphs (c)(1), (c)(2), and (c)(3) of
this AD, and equipped with Rolls-Royce RB211-524 engines.
(1) Model 747-200B, 747-200F, 747-300, and 747SP series
airplanes, as identified in Boeing Service Bulletin 747-78-2178,
Revision 1, dated August 4, 2011.
(2) Model 747-400 and 747-400F series airplanes, as identified
in Boeing Service Bulletin 747-78-2180, Revision 2, dated November
11, 2011.
(3) Model 767-300 series airplanes, as identified in Boeing
Service Bulletin 767-78-0096, Revision 1, dated December 10, 2009.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 79, Number 55 (Friday, March 21, 2014)]
[Rules and Regulations]
[Pages 15667-15671]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2014-06155]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2013-0331; Directorate Identifier 2011-NM-170-AD;
Amendment 39-17792; AD 2014-05-19]
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 747-200B, 747-200F, 747-300, 747SP, 747-400,
and 747-400F series airplanes equipped with Rolls-Royce RB211-524
engines; and certain Model 767-300 series airplanes equipped with
Rolls-Royce RB211-524 engines. This AD was prompted by multiple reports
of uncommanded thrust reverser unlock events. This AD requires
replacing certain relays and relay sockets, and doing wiring changes.
For certain airplanes, this AD also requires installing new relay
panels, and removing and installing certain components. Additionally,
this AD requires, for certain airplanes, accomplishing concurrent
actions, which include installing an additional locking system on the
thrust reversers and modifying system wiring for in-flight fault
indications of the thrust reverser system. We are issuing this AD to
prevent an uncommanded thrust reverser deployment during takeoff or in
flight, resulting in decreased airplane control and performance,
possible runway excursions, and failure to climb.
DATES: This AD is effective April 25, 2014.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of April 25,
2014.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of
February 18, 2000 (65 FR 5222, February 3, 2000).
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of
September 14, 1994 (59 FR 41647, August 15, 1994).
ADDRESSES: 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; telephone 206-544-
5000, extension 1; fax 206-766-5680; Internet <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>. 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.
Examining the AD Docket
You may examine the AD docket on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a>; by searching for and locating Docket No. FAA-2013-
0331; or in person at the Docket
[[Page 15668]]
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: Tung Tran, Aerospace Engineer,
Propulsion Branch, ANM-140S, Seattle Aircraft Certification Office
(ACO), FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-
917-6505; fax: 425-917-6590; email: <a href="/cdn-cgi/l/email-protection#194d6c777e374d6b7877597f7878377e766f"><span class="__cf_email__" data-cfemail="2c7859424b02785e4d426c4a4d4d024b435a">[email protected]</span></a>.
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 747-200B, 747-200F, 747-300, 747SP, 747-400, and 747-400F series
airplanes equipped with Rolls-Royce RB211-524 engines; and certain
Model 767-300 series airplanes equipped with Rolls-Royce RB211-524
engines. The NPRM published in the Federal Register on April 17, 2013
(78 FR 22802). The NPRM was prompted by multiple reports of uncommanded
thrust reverser unlock events. The NPRM proposed to require replacing
certain relays and relay sockets, and doing wiring changes. For certain
airplanes, the NPRM proposed to require installing new relay panels,
and removing and installing certain components. Additionally, the NPRM
proposed to require, for certain airplanes, accomplishing concurrent
actions, which include installing an additional locking system on the
thrust reversers, installing an additional locking gearbox on each
engine and modifying system wiring for in-flight fault indications of
the thrust reverser system, and installing a second locking gearbox
system on the thrust reversers. We are issuing this AD to prevent an
uncommanded thrust reverser deployment during takeoff or in flight,
resulting in decreased airplane control and performance, possible
runway excursions, and failure to climb.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the proposal
(78 FR 22802, April 17, 2013) and the FAA's response to each comment.
Support for the NPRM (78 FR 22802, April 17, 2013)
Boeing stated that it concurred with the contents of the NPRM (78
FR 22802, April 17, 2013).
The Air Line Pilots Association International stated that it agrees
with the intent of the NPRM (78 FR 22802, April 17, 2013).
Request To Specify Thrust Reverser Unit (TRU) Part Numbers
Rolls-Royce plc requested that instead of specifying the engine
models, we specify the part numbers of the affected TRUs for tracking
purposes. Rolls-Royce plc stated that the TRUs are swapped from engine
to engine, and AD compliance would be difficult to track unless it is
tracked based on the TRUs.
We do not agree with the commenter's request. This final rule only
requires changes to the control logic of the thrust reverser by
modifying the associated electrical panels on the airplane. There is no
requirement for TRU hardware replacement. Therefore, it is unnecessary
to specify the part numbers of the affected TRUs in this final rule. We
have not changed this final rule in this regard.
Statement of Financial Impact
Rolls-Royce plc stated that it is likely the actions required by
the NPRM (78 FR 22802, April 17, 2013) will have a significant
financial affect upon Middle Eastern and Far East operations. Rolls-
Royce plc did not request any change to the NPRM in this regard.
The commenter did not provide specific information to substantiate
why Middle Eastern and Far East operations would be uniquely affected.
The Costs of Compliance paragraph in this final rule is based on
estimates provided in the service information and is an estimate of
costs incurred by United States operators. We have not changed this
final rule in this regard.
Changes to This Final Rule
We clarified the required actions specified in the SUMMARY section
of this final rule by removing the wording ``installing an additional
locking system on the thrust reversers'' and ``installing a second
locking gearbox system on the thrust reversers.'' These actions are
included in the phrase ``installing an additional locking system on the
thrust reversers.'' No change has been made to the actions required by
this final rule.
We revised paragraph (b) of this final rule to indicate that this
final rule affects the requirements of AD 2000-01-05, Amendment 39-
11502 (65 FR 1051, January 7, 2000).
We revised paragraph (h)(2) of this final rule to clarify that the
installation of an additional gearbox is on the thrust reverser of each
engine, rather than on each engine.
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 change described previously and minor editorial
changes. We have determined that these minor changes:
<bullet> Are consistent with the intent that was proposed in the
NPRM (78 FR 22802, April 17, 2013) for correcting the unsafe condition;
and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM (78 FR 22802, April 17, 2013).
Costs of Compliance
We estimate that this AD affects 1 airplane of U.S. registry.
We estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Replacement and wiring change 30 work-hours x $85 per $4,289............ $6,839............ $6,839
for Model 747-200B, 747-200F, hour = $2,550.
747-300, and 747SP series
airplanes (1 U.S.-registered
airplane).
[[Page 15669]]
Removal, installations, and Up to 90 work-hours x Up to $16,607..... Up to $24,257..... 0
wiring changes for Model 747- $85 per hour = $7,650.
400 and 747-400F series
airplanes (0 U.S.-registered
airplanes).
Replacements and wiring changes Up to 32 work-hours x Up to $2,245...... Up to $4,965...... 0
for Model 767-300 series $85 per hour = $2,720.
airplanes (0 U.S.-registered
airplanes).
----------------------------------------------------------------------------------------------------------------
We estimate the following costs to do any necessary concurrent
requirements. We have no way of determining the number of aircraft that
might need accomplishment of the concurrent requirements.
Concurrent Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product
----------------------------------------------------------------------------------------------------------------
Installation of an additional locking 336 work-hours x $85 per hour = $62,674 $91,234
system for Model 747-200B, 747-200F, 747- $28,560.
300, and 747SP series airplanes.
Installation of an additional locking 185 work-hours x $85 per hour = 72,860 88,585
gearbox on each engine and modification of $15,725.
the system wiring for Model 747-400 and
747-400F series airplanes.
Installation of a second locking gearbox 754 work-hours x $85 per hour = 0 64,090
system for Model 767-300 series airplanes. $64,090.
----------------------------------------------------------------------------------------------------------------
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):
2014-05-19 The Boeing Company: Amendment 39-17792; Docket No. FAA-
2013-0331; Directorate Identifier 2011-NM-170-AD.
(a) Effective Date
This AD is effective April 25, 2014.
(b) Affected ADs
This AD affects the requirements of AD 2000-01-05, Amendment 39-
11502 (65 FR 1051, January 7, 2000).
(c) Applicability
This AD applies to The Boeing Company airplanes, certificated in
any category, identified in paragraphs (c)(1), (c)(2), and (c)(3) of
this AD, and equipped with Rolls-Royce RB211-524 engines.
(1) Model 747-200B, 747-200F, 747-300, and 747SP series
airplanes, as identified in Boeing Service Bulletin 747-78-2178,
Revision 1, dated August 4, 2011.
(2) Model 747-400 and 747-400F series airplanes, as identified
in Boeing Service Bulletin 747-78-2180, Revision 2, dated November
11, 2011.
(3) Model 767-300 series airplanes, as identified in Boeing
Service Bulletin 767-78-0096, Revision 1, dated December 10, 2009.
(d) Subject
Joint Aircraft System/Component (JASC) Code 7830, Engine Thrust
Reverser.
(e) Unsafe Condition
This AD was prompted by multiple reports of uncommanded thrust
reverser unlock events, three of which had all three locks
disengaged. We are issuing this AD to prevent an uncommanded thrust
reverser deployment during takeoff or in flight resulting in
decreased airplane control and performance, possible runway
excursions, and failure to climb.
[[Page 15670]]
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Replacement
Within 60 months after the effective date of this AD: Do the
actions specified in paragraphs (g)(1), (g)(2), and (g)(3) of this
AD, as applicable.
(1) For Model 747-200B, 747-200F, 747-300, and 747SP series
airplanes: Replace relays and relay sockets in the P252 and P253
panels with new relays and relay sockets, and do wiring changes, in
accordance with the Accomplishment Instructions of Boeing Service
Bulletin 747-78-2178, Revision 1, dated August 4, 2011.
(2) For Model 747-400 and 747-400F series airplanes: Install the
components removed from the existing P252 and P253 panels, install
new relays and relay sockets, and do wiring changes on the new P252
and P253 relay panels, in accordance with the Accomplishment
Instructions of Boeing Service Bulletin 747-78-2180, Revision 2,
dated November 11, 2011.
(3) For Model 767-300 series airplanes: Replace relays and relay
sockets in the P36 and P37 panels with new relays and relay sockets,
and do wiring changes in the P33, P36, and P37 panels, in accordance
with the Accomplishment Instructions of Boeing Service Bulletin 767-
78-0096, Revision 1, dated December 10, 2009.
(h) Concurrent Requirements
(1) For Model 747-200B, 747-200F, 747-300, and 747SP series
airplanes: Prior to or concurrently with accomplishing the actions
required by paragraph (g)(1) of this AD, install an additional
locking system on the thrust reversers, in accordance with the
Accomplishment Instructions of Boeing Service Bulletin 747-78-2156,
Revision 1, dated August 30, 2001. Accomplishing this installation
is a method of compliance with the installation required by
paragraph (c) of AD 2000-01-05, Amendment 39-11502 (65 FR 1051,
January 7, 2000).
(2) For Model 747-400 and 747-400F series airplanes identified
as Group 1, 2, 3, 4, 7, 8, or 9 airplanes in Boeing Service Bulletin
747-78-2180, Revision 2, dated November 11, 2011: Prior to or
concurrently with accomplishing the actions required by paragraph
(g)(2) of this AD, install an additional locking gearbox on the
thrust reversers of each engine and modify system wiring for in-
flight fault indications of the thrust reverser system, in
accordance with the Accomplishment Instructions of Boeing Service
Bulletin 747-78-2158, Revision 2, dated July 29, 1999.
Note 1 to paragraph (h)(2) of this AD: Paragraph (a)(1) of AD
2000-02-22, Amendment 39-11540 (65 FR 5222, February 3, 2000),
refers to Boeing Service Bulletin 747-78-2158, Revision 2, dated
July 29, 1999, as the appropriate source of service information for
accomplishing the installation required by that paragraph.
(3) For Model 767-300 series airplanes identified as Group 2
airplanes in Boeing Service Bulletin 767-78-0096, Revision 1, dated
December 10, 2009: Prior to or concurrently with accomplishing the
actions required by paragraph (g)(3) of this AD, install a second
locking gearbox system on the thrust reversers, in accordance with
the Accomplishment Instructions of Boeing Service Bulletin 767-78-
0059, Revision 3, dated January 20, 1994.
Note 2 to paragraph (h)(3) of this AD: Paragraph (c) of AD 94-
17-03, Amendment 39-8998 (59 FR 41647, August 15, 1994), refers to
Boeing Service Bulletin 767-78-0059, Revision 3, dated January 20,
1994, as an appropriate source of service information for
accomplishing the installation required by that paragraph.
(i) Credit for Previous Actions
(1) This paragraph provides credit for the requirements of
paragraph (g)(1) of this AD, if those actions were performed before
the effective date of this AD using Boeing Service Bulletin 747-78-
2178, dated January 22, 2009, which is not incorporated by reference
in this AD.
(2) This paragraph provides credit for the requirements of
paragraph (g)(2) of this AD, if those actions were performed before
the effective date of this AD using Boeing Service Bulletin 747-78-
2180, dated April 10, 2008, which is not incorporated by reference
in this AD.
(3) This paragraph provides credit for the requirements of
paragraph (g)(2) of this AD, if those actions were performed before
the effective date of this AD using Boeing Service Bulletin 747-78-
2180, Revision 1, dated November 11, 2010, which is not incorporated
by reference in this AD.
(4) This paragraph provides credit for the requirements of
paragraph (g)(3) of this AD, if those actions were performed before
the effective date of this AD using Boeing Service Bulletin 767-78-
0096, dated August 7, 2008, which is not incorporated by reference
in this AD.
(5) This paragraph provides credit for the requirements of
paragraph (h)(1) of this AD, if those actions were performed before
the effective date of this AD using Boeing Service Bulletin 747-78-
2156, dated October 31, 1996, which was incorporated by reference in
AD 99-18-03, Amendment 39-11269 (64 FR 47365, August 31, 1999).
Note 3 to paragraph (i)(5) of this AD: Paragraph (c) of AD
2000-01-05, Amendment 39-11502 (65 FR 1051, January 7, 2000), refers
to Boeing Service Bulletin 747-78-2156, dated October 31, 1996, as
the appropriate source of service information for accomplishing the
installation required by that paragraph.
(6) This paragraph provides credit for the requirements of
paragraph (h)(2) of this AD, if those actions were performed before
the effective date of this AD using Boeing Service Bulletin 747-78-
2158, Revision 1, dated January 22, 1998, which is not incorporated
by reference in this AD.
Note 4 to paragraph (i)(6) of this AD: In AD 2000-02-22,
Amendment 39-11540 (65 FR 5222, February 3, 2000), Note 2 to
paragraph (a)(1) of AD 2000-02-22 refers to Boeing Service Bulletin
747-78-2158, Revision 1, dated January 22, 1998, as a method of
compliance for accomplishing the installation required by paragraph
(a)(1) of AD 2000-02-22.
(7) This paragraph provides credit for the requirements of
paragraph (h)(3) of this AD, if those actions were performed before
the effective date of this AD using Boeing Service Bulletin 767-78-
0059, Revision 2, dated June 10, 1993, which is not incorporated by
reference in this AD, which was incorporated by reference in AD 94-
17-03, Amendment 39-8998 (59 FR 41647, August 15, 1994).
Note 5 to paragraph (i)(7) of this AD: Paragraph (c) of AD 94-
17-03, Amendment 39-8998 (59 FR 41647, August 15, 1994), refers to
Boeing Service Bulletin 767-78-0059, Revision 2, dated June 10,
1993, as an appropriate source of service information for
accomplishing the installation required by that paragraph.
(j) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle Aircraft Certification Office, FAA, has
the authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector or local Flight
Standards District Office, as appropriate. If sending information
directly to the manager of the ACO, send it to the attention of the
person identified in paragraph (k) of this AD. Information may be
emailed to: <a href="/cdn-cgi/l/email-protection#467f6b07080b6b15232732322a236b0705096b070b09056b14233733233532350620272768212930"><span class="__cf_email__" data-cfemail="5f66721e1112720c3a3e2b2b333a721e1c10721e12101c720d3a2e2a3a2c2b2c1f393e3e71383029">[email protected]</span></a>.
(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
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.
(k) Related Information
(1) For more information about this AD, contact Tung Tran,
Aerospace Engineer, Propulsion Branch, ANM-140S, Seattle Aircraft
Certification Office (ACO), FAA, 1601 Lind Avenue SW., Renton, WA
98057-3356; phone: 425-917-6505; fax: 425-917-6590; email:
<a href="/cdn-cgi/l/email-protection#366243585118624457587650575718515940"><span class="__cf_email__" data-cfemail="7c2809121b52280e1d123c1a1d1d521b130a">[email protected]</span></a>.
(2) Service information identified in this AD that is not
incorporated by reference may be obtained at the addresses specified
in paragraphs (l)(6) and (l)(7) of this AD.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(3) The following service information was approved for IBR on
April 25, 2014.
(i) Boeing Service Bulletin 747-78-2156, Revision 1, dated
August 30, 2001.
[[Page 15671]]
(ii) Boeing Service Bulletin 747-78-2178, Revision 1, dated
August 4, 2011.
(iii) Boeing Service Bulletin 747-78-2180, Revision 2, dated
November 11, 2011.
(iv) Boeing Service Bulletin 767-78-0096, Revision 1, dated
December 10, 2009.
(4) The following service information was approved for IBR on
February 18, 2000 (65 FR 5222, February 3, 2000).
(i) Boeing Service Bulletin 747-78-2158, Revision 2, dated July
29, 1999.
(ii) Reserved.
(5) The following service information was approved for IBR on
September 14, 1994 (59 FR 41647, August 15, 1994).
(i) Boeing Service Bulletin 767-78-0059, Revision 3, dated
January 20, 1994.
(ii) Reserved.
(6) 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
<a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>.
(7) You may view this service information at FAA, Transport
Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA. For
information on the availability of this material at the FAA, call
425-227-1221.
(8) 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: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Renton, Washington, on February 19, 2014.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2014-06155 Filed 3-20-14; 8:45 am]
BILLING CODE 4910-13-P
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final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: uncommanded fore and aft movement of the Captain's and First Officer's seats, which could cause a flight control obstruction or unintended flight control input, resulting in the loss of the ability...
2025-09-08
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: Outboard elevators without balance weights could result in abnormal vibration, buffeting, flutter, or oscillation that could result in loss of continued safe flight and landing. Additionally, outbo...
2025-02-05
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: improper inner diameter grinding of landing gear outer cylinders, resulting in possible heat damage to the outer cylinder of the nose landing gear (NLG), body landing gear (BLG), and wing landing g...
2024-19-01 Recurring
final ruleAirworthiness Directives; The Boeing Company Airplanes
Unsafe Condition: cracks at eight fastener hole locations in the fuselage skin lap splice between stations (STAs) 1450 and 1470 at stringers S-23L and S-23R
