AD 2013-11-04

[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 [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2013-12717]



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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.

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

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 <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>. 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 <a href="http://www.regulations.gov">http://www.regulations.gov</a>; 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: 
<a href="/cdn-cgi/l/email-protection#3673445f55187b1874445941587650575718515940"><span class="__cf_email__" data-cfemail="30754259531e7d1e72425f475e705651511e575f46">[email&#160;protected]</span></a>.

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:
    <bullet> Are consistent with the intent that was proposed in the 
NPRM (77 FR 50411, August 21, 2012) for correcting the unsafe 
condition; and
    <bullet> 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.
--------------------------------------------------------------------------------------------------------------------------------------------------------

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: <a href="/cdn-cgi/l/email-protection#192034585754344a7c786d6d757c34585a56345854565a344b7c686c7c6a6d6a597f7878377e766f"><span class="__cf_email__" data-cfemail="d2ebff939c9fff81b7b3a6a6beb7ff93919dff939f9d91ff80b7a3a7b7a1a6a192b4b3b3fcb5bda4">[email&#160;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.

(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: <a href="/cdn-cgi/l/email-protection#1d586f747e3350335f6f726a735d7b7c7c337a726b"><span class="__cf_email__" data-cfemail="2663544f45086b0864544951486640474708414950">[email&#160;protected]</span></a>.
    (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 <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>. 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 <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>.
    (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 <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 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