[Federal Register Volume 78, Number 107 (Tuesday, June 4, 2013)]
[Rules and Regulations]
[Pages 33193-33197]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2013-12717]
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Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
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Federal Register / Vol. 78, No. 107 / Tuesday, June 4, 2013 / Rules
and Regulations
[[Page 33193]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0856; Directorate Identifier 2012-NM-093-AD;
Amendment 39-17464; AD 2013-11-04]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for certain
The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B,
747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series
airplanes; Model 767-200, -300, -300F, and -400ER series airplanes; and
Model 777-200, -200LR, -300, and -300ER series airplanes. This AD was
prompted by operator or in-service reports of burned Boeing Material
Specification (BMS) 8-39 urethane foam, and a report from the airplane
manufacturer indicating that airplanes were assembled, throughout
various areas of the airplane (including flight deck and cargo
compartments), with seals made of BMS 8-39 urethane foam, a material
with fire-retardant properties that deteriorate with age. This AD
requires replacing certain seals made of BMS 8-39 urethane foam. We are
issuing this AD to prevent the failure of urethane seals to maintain
sufficient Halon concentrations in the cargo compartments to extinguish
or contain fire or smoke, and to prevent penetration of fire or smoke
in areas of the airplane that are difficult to access for fire and
smoke detection or suppression.
DATES: This AD is effective July 9, 2013.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of July 9, 2013.
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 https://www.myboeingfleet.com. You may review copies of the 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 http://www.regulations.gov; 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 Document 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: Eric M. Brown, Aerospace Engineer,
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle
Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6476; fax: 425-917-6590; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM published in the Federal Register on August 21, 2012 (77 FR
50411). That NPRM proposed to require replacing seals made of BMS 8-39
urethane foam in certain areas of the airplane.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the proposal
(77 FR 50411, August 21, 2012) and the FAA's response to each comment.
Request for Safety Determination
United Parcel Service (UPS) noted that the proposed actions
specified in the NPRM (77 FR 50411, August 21, 2012) affect a
relatively small quantity of small parts in the airplane, and that the
referenced sources of service information were not identified as
``alert'' service bulletins. UPS therefore requested additional
information on the risk assessment that was done to determine that
those parts pose a significant risk to flight safety.
We agree to provide additional information to support the need to
issue the AD as proposed. The intent of the AD, as explained in the
NPRM (77 FR 50411, August 21, 2012), is to prevent penetration of smoke
or fire in areas of the airplane that are difficult to access for fire
and smoke detection or suppression. Further, BMS 8-39 fire properties
degrade over time and may result in BMS 8-39 material becoming a fuel
source for an ignition event in hidden parts of the airplane. The FAA
made this safety determination based on tests of aged BMS 8-39 material
and in-service experience that demonstrated that this material may
propagate a fire when exposed to an ignition source. We have therefore
determined that it is necessary to proceed with issuing the final rule.
Request To Clarify Re-Installation Restrictions
Boeing and United Airlines (UAL) requested that we revise paragraph
(i) of the NPRM (77 FR 50411, August 21, 2012), which proposed to
prohibit installation of BMS 8-39 foam seals on any airplane. Noting
that paragraph (g) of the NPRM would require seal replacement only in
certain areas of the airplane, the commenters requested that paragraph
(i) of the NPRM be revised to explicitly identify the areas that are
subject to re-installation restrictions.
UPS noted that not all BMS 8-39 foam is removed from the airplane
as part of the rework as specified in Boeing Special Attention Service
Bulletin 747-25-3381, Revision 1, dated May 17, 2012; and Boeing
Special Attention Service Bulletin 767-25-0381, Revision 1, dated
September 17, 2012. Those service bulletins state that the foam is
``not replaced in areas where it is
[[Page 33194]]
encapsulated by a protective fire resistant barrier or where it is
physically isolated from an ignition source.'' UPS was concerned that
BMS 8-39 foam may be used to replace damaged foam in these encapsulated
areas, creating noncompliance with paragraph (i) of the NPRM (77 FR
50411, August 21, 2012).
We agree with the request. The intent of paragraph (i) of this AD
is to maintain the level of safety established by the corrective action
of this AD, not to prohibit BMS 8-39 installation in locations excluded
by this AD. We have revised paragraph (i) in this final rule
accordingly.
Request To Allow Re-Installation During Maintenance
UPS requested that we revise paragraph (i) of the NPRM (77 FR
50411, August 21, 2012) to allow re-installation of items removed for
access without the need to replace serviceable BMS 8-39 foam seals
before the proposed rework is done. UPS suggested adding the following
sentence: ``Parts removed and reinstalled to facilitate maintenance, or
removed, repaired in accordance with the approved manuals, and
reinstalled, on the same airplane are not affected by this rule.''
We acknowledge the commenter's concern, and agree to clarify the
requirement. Once we have determined that an unsafe condition exists,
an AD generally specifies not to allow that condition to be introduced
into the fleet. Although the word ``install'' is generally considered
to be broader than the word ``replace,'' operators can interpret
``install'' in this AD as meaning ``replace'' and still meet the intent
of paragraph (i) of this AD (``Parts Installation Prohibition''). By
simply re-installing a part removed during maintenance, the operator is
not ``installing'' a different part. Therefore, the AD allows operators
to remove a part to gain access, and then re-install that same part for
other maintenance activities not associated with the AD.
Request To Supplement Service Information
UPS noted that the number and location of affected foam insulation
parts are not specified in Boeing Special Attention Service Bulletin
747-25-3381, Revision 1, dated May 17, 2012; or Boeing Special
Attention Service Bulletin 767-25-0381, Revision 1, dated September 17,
2012. This leaves the decision to remove and replace insulation to the
mechanic. UPS added that those service bulletins do not clearly depict
the affected parts, whereas typical AD-related service bulletins are
very specific as to the location, quantity, and condition being
addressed. UPS asserted that neither of these service bulletins has the
expected level of detail necessary to prevent the risk of
noncompliance.
We infer that the commenter is requesting additional AD
instructions to supplement the service bulletins. We disagree. The
level of detail necessary to comply with the requirements of the AD is
clear in Boeing Special Attention Service Bulletin 747-25-3381,
Revision 1, dated May 17, 2012; and Boeing Special Attention Service
Bulletin 767-25-0381, Revision 1, dated September 17, 2012. These
service bulletins cannot provide specific information for every
airplane because the location of the parts may not be identical on
every airplane. Therefore, these service bulletins may not provide
explicit directions regarding the location of the parts needed to be
removed; instead the service bulletins provide inspection procedures to
locate those parts. Once the affected parts are located, operators can
document the parts/locations as necessary to ensure that compliance
with the AD is maintained in the future. Because the service
information is adequate to perform the required tasks, we have not
changed the final rule regarding this issue.
Request To Clarify Service Information
Paragraph (i) of the NPRM (77 FR 50411, August 21, 2012) would
prohibit installing a BMS 8-39 urethane foam seal on any airplane as of
the effective date of the AD. UPS stated that, in many cases, Boeing
has given unique part numbers to the new seals, but has not changed the
assembly part numbers of the associated line replaceable units (LRUs).
UPS added that certain modifications (such as the installation of felt
on Model 767 airplanes per Figure 18 of Boeing Special Attention
Service Bulletin 767-25-0381, Revision 1, dated September 17, 2012)
identified in the associated service bulletins do not bear specific
part numbers and are unrelated to the installation of BMS 8-39. UPS
stated that Boeing has not provided any revisions to the illustrated
parts catalog (IPC) or airplane maintenance manual (AMM) associated
with the service bulletin changes. Without such manual support, UPS
asserted that there are no industry controls in place to effectively
maintain a post-modification configuration.
We infer that the commenter is requesting that we revise the NPRM
(77 FR 50411, August 21, 2012) to clarify the referenced procedures and
parts. We disagree. Operators are required to both comply with the AD
requirements and have controls in place to effectively maintain the
configuration of their airplanes. The IPC and AMM are not FAA approved
and are not used to control the configuration of the airplane.
Operators can, however, request from Boeing any updated documents that
would facilitate the maintenance of the AD-mandated configuration. We
have not changed the final rule regarding this issue.
Request To Cite Latest Service Information
Paragraphs (c)(2) and (g)(2) of the NPRM (77 FR 50411, August 21,
2012) referred to Boeing Special Attention Service Bulletin 767-25-
0381, dated August 19, 2010, as the appropriate source for the
applicability and service information for Model 767 airplanes. UAL
requested that we revise the NPRM to refer to the recently revised
service bulletin: Boeing Special Attention Service Bulletin 767-25-
0381, Revision 1, dated September 17, 2012.
We agree. Boeing Special Attention Service Bulletin 767-25-0381,
Revision 1, dated September 17, 2012, changes certain airplane groups
and provides other administrative changes, but adds no work for any
affected airplane. We have revised paragraphs (c)(2) and (g)(2) in this
the final rule accordingly. We have also added new paragraph (h)(2) in
this final rule to provide credit for actions done on affected
airplanes in accordance with Boeing Special Attention Service Bulletin
767-25-0381, dated August 19, 2010.
Request To Delay AD Issuance Pending Revised Service Information
UPS reported that it has submitted service bulletin comments and
questions directly to Boeing and requested that the FAA permit Boeing
to address these concerns by revising the referenced service
information before issuing the final rule.
We disagree. Delaying issuance of the AD would negatively affect
safety. If the commenter has a specific concern with the ability to
comply with the AD, we will consider requests to approve specific
procedures for compliance under the provisions of paragraph (j) of this
AD, if sufficient data are submitted to substantiate that the
procedures would provide an acceptable level of safety.
Request To Consider Information Notices
UAL questioned whether the AD will cover the changes introduced by
two Information Notices (INs): Boeing Service Bulletin 777-25-0362 IN
01, dated February 27, 2012; and Boeing
[[Page 33195]]
Service Bulletin 777-25-0362 IN 02, dated August 14, 2012.
We have not changed the final rule to refer to the INs, which are
for information only. The INs do not affect compliance with the final
rule.
Request To Extend Compliance Time
All Nippon Airways (ANA) requested that we revise the NPRM (77 FR
50411, August 21, 2012) to extend the compliance time from 72 months to
88 months to correspond to ANA's 4C check interval. ANA reported that
removal of stowage bins and other cabin items, typically done as part
of the 4C check, would allow access to the areas affected by the NPRM.
But with the 72-month compliance time, as proposed, ANA asserted that
additional tasks would be necessary to get access to those areas, and
would add work-hours and large costs for most of its fleet.
We acknowledge ANA's concern, but do not agree with the request. In
developing an appropriate compliance time for this action, we
considered the urgency associated with the subject unsafe condition,
the availability of required parts, and the practical aspect of
accomplishing the required seal replacement within a period of time
that corresponds to the normal scheduled maintenance for most affected
operators. Under the provisions of paragraph (j) of this AD, however,
we will consider requests to approve 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 Exclude Certain Airplanes
The NPRM (77 FR 50411, August 21, 2012) stated that deteriorated
BMS 8-39 urethane foam seals in a cargo compartment compromise the
Halon retention and smoke- and fire-blocking capabilities of the cargo
compartment. UPS reported that its Model 767-300F package freighters
are not equipped with Class C cargo compartments and do not have issues
with containment of Halon.
We infer that the commenter is requesting that we revise the
applicability to remove airplanes that do not have Class C cargo
compartments. We disagree. The unsafe condition identified in this AD--
penetration of smoke/fire in areas of the airplane that are difficult
to access for fire/smoke detection or suppression--is not limited to
airplanes equipped with Halon fire suppression. In addition, BMS 8-39
fire retardant properties, which deteriorate over time, can provide a
fuel source for an ignition event in hidden areas of the airplane. We
have therefore determined that UPS's package freighters are subject to
the identified unsafe condition. We have not changed the final rule
regarding this issue.
Request To Revise Inspection Requirement
Paragraph (g)(1) in the NPRM (77 FR 50411, August 21, 2012) would
require replacement of the BMS 8-39 urethane foam seals with BMS 8-371
insulation foam or BMS 1-68 silicone foam rubber seals, in accordance
with Boeing Special Attention Service Bulletin 747-25-3381, Revision 1,
dated May 17, 2012. Japan Airlines (JAL) noted that these actions
include removal of a certain foam pad, as specified in Figure 16, View
1, of that service bulletin. JAL reported that the cargo light part
number BR7203-701 does not contain any foam, and no foam was found
installed around the cargo light. JAL concluded that it cannot identify
the existence of the foam pad and therefore requested that we revise
the NPRM to specify that this removal step would apply only if the foam
pad exists.
We agree to provide clarification on this issue. We have determined
that some sort of padding should exist near the cargo light. If the pad
has been removed, however, the operator can request approval of an
alternative method of compliance for appropriate procedures in
accordance with the provisions of paragraph (j) of this AD. We have not
changed the final rule regarding this issue.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
the AD with the changes described previously-- and minor editorial
changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM (77 FR 50411, August 21, 2012) for correcting the unsafe
condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM (77 FR 50411, August 21, 2012).
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of the AD.
Costs of Compliance
We estimate that this AD affects 694 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product Cost on U.S. operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
Replacement--165 Model 747 Up to 432 work-hours Up to $6,162.................. Up to $42,882................. Up to $7,075,530.
airplanes. x $85 per hour =
$36,720.
Replacement--399 Model 767 Up to 72 work-hours x Up to $3,967.................. Up to $10,087................. Up to $4,024,713.
airplanes. $85 per hour =
$6,120.
Replacement--130 Model 777 16 work-hours x $85 $1,038........................ $2,398........................ $311,740.
airplanes. per hour = $1,360.
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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
[[Page 33196]]
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):
2013-11-04 The Boeing Company: Amendment 39-17464; Docket No. FAA-
2012-0856; Directorate Identifier 2012-NM-093-AD.
(a) Effective Date
This AD is effective July 9, 2013.
(b) Affected ADs
None.
(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.
(1) Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200F,
747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series
airplanes, as identified in Boeing Special Attention Service
Bulletin 747-25-3381, Revision 1, dated May 17, 2012.
(2) Model 767-200, -300, -300F, and -400ER series airplanes, as
identified in Boeing Special Attention Service Bulletin 767-25-0381,
Revision 1, dated September 17, 2012.
(3) Model 777-200, -200LR, -300, and -300ER series airplanes, as
identified in Boeing Special Attention Service Bulletin 777-25-0362,
dated August 19, 2010.
(d) Subject
Joint Aircraft System Component (JASC)/Air Transport Association
(ATA) of America Code 25, Equipment/furnishings.
(e) Unsafe Condition
This AD was prompted by reports of burned Boeing Material
Specification (BMS) 8-39 urethane foam, and a report from the
airplane manufacturer indicating that airplanes were assembled,
throughout various areas of the airplane (including flight deck and
cargo compartments), with seals made of BMS 8-39 urethane foam, a
material with fire-retardant properties that deteriorate with age.
We are issuing this AD to prevent the failure of urethane seals to
maintain sufficient Halon concentrations in the cargo compartments
to extinguish or contain fire or smoke, and to prevent penetration
of fire or smoke in areas of the airplane that are difficult to
access for fire and smoke detection or suppression.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) BMS 8-39 Urethane Foam Seal Replacements
Within 72 months after the effective date of this AD, do the
actions specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD,
as applicable.
(1) For Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-
200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series
airplanes: Replace the BMS 8-39 urethane foam seals (including doing
a general visual inspection of the airplane sidewalls for air
baffles, and of the BMS 8-39 urethane foam for penetrations (e.g.,
wire penetrations)) with BMS 8-371 insulation foam or BMS 1-68
silicone foam rubber seals, as applicable, in accordance with the
Accomplishment Instructions and Appendix A, as applicable, of Boeing
Special Attention Service Bulletin 747-25-3381, Revision 1, dated
May 17, 2012.
(2) For Model 767-200, -300, -300F, and -400ER series airplanes:
Perform a general visual inspection for the presence of BMS 8-39
urethane foam, cover the BMS 8-39 foam with cargo liner joint
sealing tape in certain areas, replace certain BMS 8-39 foam pads
with Nomex felt in certain areas, and replace BMS 8-39 urethane foam
seals with BMS 8-371 insulation foam or BMS 1-68 silicone foam
rubber seals, as applicable, in accordance with the Accomplishment
Instructions and Appendix A, as applicable, of Boeing Special
Attention Service Bulletin 767-25-0381, Revision 1, dated September
17, 2012.
(3) For Model 777-200, -200LR, -300, and -300ER series
airplanes: Replace BMS 8-39 urethane foam seals with BMS 1-68
silicone foam rubber seals in the forward and aft cargo compartments
of the airplane, in accordance with the Accomplishment Instructions
of Boeing Special Attention Service Bulletin 777-25-0362, dated
August 19, 2010.
(h) Credit for Previous Actions
(1) For Groups 4 and 5 airplanes, as identified in Boeing
Special Attention Service Bulletin 747-25-3381, Revision 1, dated
May 17, 2012: This paragraph provides credit for the actions
required by paragraph (g)(1) of this AD, if those actions were done
before the effective date of this AD using Boeing Special Attention
Service Bulletin 747-25-3381, dated August 19, 2010.
(2) For Model 767 airplanes: This paragraph provides credit for
the actions required by paragraph (g)(2) of this AD, if those
actions were done before the effective date of this AD using Boeing
Special Attention Service Bulletin 767-25-0381, dated August 19,
2010.
(i) Parts Installation Prohibition
As of the effective date of this AD, no person may install a BMS
8-39 urethane foam seal in any location identified in paragraphs
(g)(1), (g)(2), and (g)(3), as applicable, of this AD.
(j) 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 the Related Information
section 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.
(k) Related Information
(1) For more information about this AD, contact Eric M. Brown,
Aerospace Engineer, Cabin Safety and Environmental Systems Branch,
ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind
Avenue SW., Renton, WA 98057-3356; phone: 425-917-6476; 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; telephone 206-544-
5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may review copies of the 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.
(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.
[[Page 33197]]
(i) Boeing Special Attention Service Bulletin 747-25-3381,
Revision 1, dated May 17, 2012.
(ii) Boeing Special Attention Service Bulletin 767-25-0381,
Revision 1, dated September 17, 2012.
(iii) Boeing Special Attention Service Bulletin 777-25-0362,
dated August 19, 2010.
(3) 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 https://www.myboeingfleet.com.
(4) You may review copies of the 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.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call 202-741-6030, or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Renton, Washington, on May 16, 2013.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2013-12717 Filed 6-3-13; 8:45 am]
BILLING CODE 4910-13-P