Airworthiness Directives; The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes, 39818-39820 [2010-16435]

Download as PDF 39818 Federal Register / Vol. 75, No. 133 / Tuesday, July 13, 2010 / Rules and Regulations Office—EAL, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 45 80, e-mail airworthiness.A330-A340@airbus.com; Internet https://www.airbus.com. (3) You may review copies of the service information at 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. (4) You may also review copies of the 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: https://www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Renton, Washington on June 29, 2010. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010–16550 Filed 7–12–10; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2010–0383; Directorate Identifier 2009–NM–214–AD; Amendment 39–16362; AD 2010–14–17] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Model 747–100, 747–100B, 747–100B SUD, 747–200B, 747–200C, 747–200F, 747–300, 747–400, 747SR, and 747SP Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Model 747–100, 747–100B, 747–100B SUD, 747–200B, 747–200C, 747–200F, 747–300, 747–400, 747SR, and 747SP series airplanes. This AD requires repetitive detailed inspections of certain overwing intercostal webs, and related investigative and corrective actions if necessary. This AD results from reports of cracks in overwing intercostal webs. We are issuing this AD to detect and correct such cracking, which could grow and result in a severed intercostal. If an intercostal is severed, cracks could develop in the adjacent frame structure and skin, resulting in a rapid loss of cabin pressure. DATES: This AD is effective August 17, 2010. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of August 17, 2010. ADDRESSES: For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, Washington 98124– 2207; telephone 206–544–5000, extension 1; fax 206–766–5680; e-mail me.boecom@boeing.com; Internet https://www.myboeingfleet.com. Examining the AD Docket You may examine the AD docket on the Internet at https:// 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 (telephone 800–647–5527) is the 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: Ivan Li, Aerospace Engineer, Airframe Branch, ANM–120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 917–6437; fax (425) 917–6590. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an airworthiness directive (AD) that would apply to certain Model 747–100, 747–100B, 747– 100B SUD, 747–200B, 747–200C, 747– 200F, 747–300, 747–400, 747SR, and 747SP series airplanes. That NPRM was published in the Federal Register on April 21, 2010 (75 FR 20792). That NPRM proposed to require repetitive detailed inspections of certain overwing intercostal webs, and related investigative and corrective actions if necessary. Comments We gave the public the opportunity to participate in developing this AD. We considered the comment received. Boeing supports the NPRM. Conclusion We reviewed the relevant data, considered the comment received, and determined that air safety and the public interest require adopting the AD as proposed. Costs of Compliance We estimate that this AD affects 86 airplanes of U.S. registry. The following table provides the estimated costs for U.S. operators to comply with this AD. TABLE—ESTIMATED COSTS Work hours Average labor rate per hour Parts Cost per product Number of U.S.-registered airplanes Inspection ... jlentini on DSKJ8SOYB1PROD with RULES Action 4 $85 None ........... $340 per inspection cycle 86 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, VerDate Mar<15>2010 16:12 Jul 12, 2010 Jkt 220001 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 PO 00000 Frm 00032 Fmt 4700 Sfmt 4700 Fleet cost $29,240 per inspection cycle. 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 E:\FR\FM\13JYR1.SGM 13JYR1 Federal Register / Vol. 75, No. 133 / Tuesday, July 13, 2010 / Rules and Regulations 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), and (3) 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. You can find our regulatory evaluation and the estimated costs of compliance in the AD Docket. Administration is issuing this AD to detect and correct such cracking, which could grow and result in a severed intercostal. If an intercostal is severed, cracks could develop in the adjacent frame structure and skin, resulting in a rapid loss of cabin pressure. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. (g) Before the accumulation of 8,000 total flight cycles, or within 1,500 flight cycles after the effective date of this AD, whichever occurs later: Do a detailed inspection of the left-side and right-side STAs 1160, 1180, 1200, and 1220 overwing intercostal webs, and do all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 747– 53A2750, dated August 27, 2009, except as required by paragraph (i) of this AD. Do all applicable related investigative and corrective actions before further flight. If no cracking is found during any detailed inspection, repeat the inspection thereafter at intervals not to exceed 3,000 flight cycles. (h) For any airplane with an overwing intercostal web replaced in accordance with Boeing Alert Service Bulletin 747– 53A2750, dated August 27, 2009: Within 6,000 flight cycles after the web was replaced, do a detailed inspection of the replacement overwing intercostal web, and do all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 747–53A2750, dated August 27, 2009, except as required by paragraph (i) of this AD. Do all applicable related investigative and corrective actions before further flight. If no cracking is found during any detailed inspection, repeat the inspection thereafter at intervals not to exceed 3,000 flight cycles. 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: 2010–14–17 The Boeing Company: Amendment 39–16362. Docket No. FAA–2010–0383; Directorate Identifier 2009–NM–214–AD. ■ Effective Date (a) This airworthiness directive (AD) is effective August 17, 2010. Affected ADs (b) None. jlentini on DSKJ8SOYB1PROD with RULES Applicability (c) This AD applies to The Boeing Company Model 747–100, 747–100B, 747–100B SUD, 747–200B, 747–200C, 747–200F, 747–300, 747–400, 747SR, and 747SP series airplanes, certificated in any category; as identified in Boeing Alert Service Bulletin 747–53A2750, dated August 27, 2009. Subject (d) Air Transport Association (ATA) of America Code 53: Fuselage. Unsafe Condition (e) This AD results from reports of cracks in overwing intercostal webs between station (STA) 1160 and STA 1220. The Federal Aviation VerDate Mar<15>2010 16:12 Jul 12, 2010 Jkt 220001 Compliance (f) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Repetitive Inspections of the Overwing Intercostal Web Exception to Service Bulletin (i) If any cracking is found during any inspection required by this AD, and Boeing Alert Service Bulletin 747– 53A2750, dated August 27, 2009, specifies contacting Boeing for appropriate action: Before further flight, repair the cracking using a method approved in accordance with the procedures provided in paragraph (j) of this AD. PO 00000 Frm 00033 Fmt 4700 Sfmt 4700 39819 Alternative Methods of Compliance (AMOCs) (j)(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. Send information to Attn: Ivan Li, Aerospace Engineer, Airframe Branch, ANM–120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 917–6437; fax (425) 917–6590. Information may be e-mailed to: 9-ANM-Seattle-ACO-AMOCRequests@faa.gov. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. The AMOC approval letter must specifically reference this AD. (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. Material Incorporated by Reference (k) You must use Boeing Alert Service Bulletin 747–53A2750, dated August 27, 2009, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, Washington 98124–2207; telephone 206–544–5000, extension 1; fax 206–766–5680; e-mail me.boecom@boeing.com; Internet https://www.myboeingfleet.com. (3) You may review copies of the service information at 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. (4) You may also review copies of the service information that is incorporated E:\FR\FM\13JYR1.SGM 13JYR1 39820 Federal Register / Vol. 75, No. 133 / Tuesday, July 13, 2010 / Rules and Regulations 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: https://www.archives.gov/ federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Renton, Washington, on June 25, 2010. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010–16435 Filed 7–12–10; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Highway Administration 23 CFR Part 772 [FHWA Docket No. FHWA–2008–0114] RIN 2125–AF26 Procedures for Abatement of Highway Traffic Noise and Construction Noise AGENCY: Federal Highway Administration (FHWA), DOT. ACTION: Final rule. SUMMARY: This final rule amends the Federal regulations on the Procedures for Abatement of Highway Traffic Noise and Construction Noise. The final rule clarifies and adds definitions, the applicability of this regulation, certain analysis requirements, and the use of Federal funds for noise abatement measures. Effective date: July 13, 2011. Incorporation by reference: The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of July 13, 2011. FOR FURTHER INFORMATION CONTACT: Mr. Mark Ferroni, Office of Natural and Human Environment, (202) 366–3233, or Mr. Robert Black, Office of the Chief Counsel, (202) 366–1359, Federal Highway Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590. DATES: SUPPLEMENTARY INFORMATION: jlentini on DSKJ8SOYB1PROD with RULES Electronic Access This document and all comments received by the DOT Docket Facility, Room PL–401, may be viewed through www.regulations.gov. Regulations.gov is available 24 hours each day, 365 days each year. Electronic submission and retrieval help and guidelines are available under the help section of this Web site. VerDate Mar<15>2010 16:12 Jul 12, 2010 Jkt 220001 An electronic copy of this document may be downloaded by using a computer, modem, and suitable communications software from the Government Printing Office’s Electronic Bulletin Board Service at (202) 512– 1661. Internet users may also reach the Office of the Federal Register’s home page at: https://www.archives.gov and the Government Printing Office’s Web page at: https://www.access.gpo.gov/nara. Background The FHWA developed the noise regulation as required by section 136 of the Federal-Aid Highway Act of 1970 (codified at 23 U.S.C. 109(i)). The regulation applies to highway construction projects where a State department of transportation has requested Federal funding for participation in the project. The FHWA noise regulation, found at 23 CFR 772, requires a highway agency to investigate traffic noise impacts in areas adjacent to federally funded highways for the proposed construction of a highway on a new location or the reconstruction of an existing highway that either significantly changes the horizontal or vertical alignment or increases the number of through-traffic lanes. If the highway agency identifies impacts, it must consider abatement. The highway agency must incorporate all feasible and reasonable noise abatement into the project design. The FHWA published the ‘‘Highway Traffic Noise Analysis and Abatement Policy and Guidance’’ (Policy and Guidance), dated June 1995 (available at https://www.fhwa.dot.gov/environment/ noise/polguide/polguid.pdf), which provides guidance and policy on highway traffic and construction noise abatement procedures for Federal-aid projects. While updating the 1995 Policy and Guidance, the FHWA determined that certain changes to the noise regulations were necessary. As a result, the FHWA published a Notice of Proposed Rulemaking (NPRM) on September 17, 2009 (74 FR 47762). This final rule amends sections 772.1, 772.5 to 772.17, and Table 1—Noise Abatement Criteria. Sections 772.3 and 772.19 are not amended by this final rule, and Appendix A—National Reference Energy Mean Emission Levels as a Function of Speed, is removed by this final rule. This final rule also reorganizes various sections and parts of sections throughout the NPRM to institute a more logical order in the regulation. This reorganization does not change the meaning of the regulation and is not substantive in nature. In the preamble of the NPRM, the FHWA specifically asked for comments PO 00000 Frm 00034 Fmt 4700 Sfmt 4700 on the cost of abatement, third party funding for abatement, and maintaining a noise abatement inventory. The FHWA appreciates the comments received on this section. A summary of the comments received and the FHWA’s response to these comments can be found in the discussion of comments section. The preamble of the NPRM requested comments on a proposed timeline for highway agencies to revise and have the FHWA approve their noise policies. Changes to this timeline have been made based on the comments received. Therefore, highway agencies will need to submit their revised noise policy, meeting the requirements of this final rule, to FHWA for approval within 6 months from the publication date of this final rule. The FHWA will review the highway agency’s revised noise policy for conformance to the final rule and uniform and consistent application nationwide. The highway agency will provide FHWA a review schedule for approval of their revised noise policy that does not exceed 3 months from the highway agency’s first submission of the revised noise policy to the FHWA. Each review of the document by FHWA should have a duration of at least 14 days for the initial and subsequent reviews. The highway agency’s main point of contact for this review will be the FHWA Division Office in their State. Each highway agency’s revised noise document will be concurrently reviewed by three FHWA offices to ensure uniform and consistent application of this final rule nationwide (one from the respective Division Office, one from the Resource Center, and one from Headquarters). Failure to submit a revised noise policy in accordance with the final rule could result in a delay in FHWA’s approval of Federal-aid highway projects that require a noise analysis. The highway agency would be required to implement the new standard no later than 12 months from the date this final rule was published in the Federal Register. Grandfathering to the pre-final rule of 23 CFR 772 should be considered for Federal-aid highway projects for which the Categorical Exclusion, Finding of No Significant Impact, or Record of Decision has been signed by the effective date of this final rule. The State highway agency should coordinate with their FHWA Division Office to determine which projects, if any, should be completed under the previous 23 CFR 772 and highway agency’s previously approved noise policy. The FHWA has updated the Policy and Guidance document to reflect what is presented in this final rule. Highway E:\FR\FM\13JYR1.SGM 13JYR1

Agencies

[Federal Register Volume 75, Number 133 (Tuesday, July 13, 2010)]
[Rules and Regulations]
[Pages 39818-39820]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-16435]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2010-0383; Directorate Identifier 2009-NM-214-AD; 
Amendment 39-16362; AD 2010-14-17]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Model 747-100, 747-
100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 
747SR, and 747SP Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 
747-300, 747-400, 747SR, and 747SP series airplanes. This AD requires 
repetitive detailed inspections of certain overwing intercostal webs, 
and related investigative and corrective actions if necessary. This AD 
results from reports of cracks in overwing intercostal webs. We are 
issuing this AD to detect and correct such cracking, which could grow 
and result in a severed intercostal. If an intercostal is severed, 
cracks could develop in the adjacent frame structure and skin, 
resulting in a rapid loss of cabin pressure.

DATES: This AD is effective August 17, 2010.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of August 17, 
2010.

ADDRESSES: For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-
544-5000, extension 1; fax 206-766-5680; e-mail me.boecom@boeing.com; 
Internet https://www.myboeingfleet.com.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://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 (telephone 800-647-5527) is the 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: Ivan Li, Aerospace Engineer, Airframe 
Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
917-6437; fax (425) 917-6590.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an airworthiness directive (AD) that would apply to 
certain Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-
200F, 747-300, 747-400, 747SR, and 747SP series airplanes. That NPRM 
was published in the Federal Register on April 21, 2010 (75 FR 20792). 
That NPRM proposed to require repetitive detailed inspections of 
certain overwing intercostal webs, and related investigative and 
corrective actions if necessary.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We considered the comment received. Boeing supports the NPRM.

Conclusion

    We reviewed the relevant data, considered the comment received, and 
determined that air safety and the public interest require adopting the 
AD as proposed.

Costs of Compliance

    We estimate that this AD affects 86 airplanes of U.S. registry. The 
following table provides the estimated costs for U.S. operators to 
comply with this AD.

                                                                                     Table--Estimated Costs
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                              Number of U.S.-
                Action                    Work hours     Average labor             Parts                Cost per product         registered                        Fleet cost
                                                         rate per hour                                                           airplanes
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection...........................               4              $85   None.....................  $340 per inspection                   86   $29,240 per inspection cycle.
                                                                                                     cycle.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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

[[Page 39819]]

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), and
    (3) 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.
    You can find our regulatory evaluation and the estimated costs of 
compliance in the AD Docket.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

0
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 AD:
    2010-14-17 The Boeing Company: Amendment 39-16362. Docket No. FAA-
2010-0383; Directorate Identifier 2009-NM-214-AD.

Effective Date

    (a) This airworthiness directive (AD) is effective August 17, 2010.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to The Boeing Company Model 747-100, 747-100B, 
747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, 
and 747SP series airplanes, certificated in any category; as identified 
in Boeing Alert Service Bulletin 747-53A2750, dated August 27, 2009.

Subject

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

Unsafe Condition

    (e) This AD results from reports of cracks in overwing intercostal 
webs between station (STA) 1160 and STA 1220. The Federal Aviation 
Administration is issuing this AD to detect and correct such cracking, 
which could grow and result in a severed intercostal. If an intercostal 
is severed, cracks could develop in the adjacent frame structure and 
skin, resulting in a rapid loss of cabin pressure.

Compliance

    (f) You are responsible for having the actions required by this AD 
performed within the compliance times specified, unless the actions 
have already been done.

Repetitive Inspections of the Overwing Intercostal Web

    (g) Before the accumulation of 8,000 total flight cycles, or within 
1,500 flight cycles after the effective date of this AD, whichever 
occurs later: Do a detailed inspection of the left-side and right-side 
STAs 1160, 1180, 1200, and 1220 overwing intercostal webs, and do all 
applicable related investigative and corrective actions, in accordance 
with the Accomplishment Instructions of Boeing Alert Service Bulletin 
747-53A2750, dated August 27, 2009, except as required by paragraph (i) 
of this AD. Do all applicable related investigative and corrective 
actions before further flight. If no cracking is found during any 
detailed inspection, repeat the inspection thereafter at intervals not 
to exceed 3,000 flight cycles.
    (h) For any airplane with an overwing intercostal web replaced in 
accordance with Boeing Alert Service Bulletin 747-53A2750, dated August 
27, 2009: Within 6,000 flight cycles after the web was replaced, do a 
detailed inspection of the replacement overwing intercostal web, and do 
all applicable related investigative and corrective actions, in 
accordance with the Accomplishment Instructions of Boeing Alert Service 
Bulletin 747-53A2750, dated August 27, 2009, except as required by 
paragraph (i) of this AD. Do all applicable related investigative and 
corrective actions before further flight. If no cracking is found 
during any detailed inspection, repeat the inspection thereafter at 
intervals not to exceed 3,000 flight cycles.

Exception to Service Bulletin

    (i) If any cracking is found during any inspection required by this 
AD, and Boeing Alert Service Bulletin 747-53A2750, dated August 27, 
2009, specifies contacting Boeing for appropriate action: Before 
further flight, repair the cracking using a method approved in 
accordance with the procedures provided in paragraph (j) of this AD.

Alternative Methods of Compliance (AMOCs)

    (j)(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. Send information to Attn: Ivan 
Li, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle 
Aircraft Certification Office (ACO), 1601 Lind Avenue, SW., Renton, 
Washington 98057-3356; telephone (425) 917-6437; fax (425) 917-6590. 
Information may be e-mailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.
    (2) To request a different method of compliance or a different 
compliance time for this AD, follow the procedures in 14 CFR 39.19. 
Before using any approved AMOC on any airplane to which the AMOC 
applies, notify your principal maintenance inspector (PMI) or principal 
avionics inspector (PAI), as appropriate, or lacking a principal 
inspector, your local Flight Standards District Office. The AMOC 
approval letter must specifically reference this AD.
    (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.

Material Incorporated by Reference

    (k) You must use Boeing Alert Service Bulletin 747-53A2750, dated 
August 27, 2009, to do the actions required by this AD, unless the AD 
specifies otherwise.
    (1) The Director of the Federal Register approved the incorporation 
by reference of this service information under 5 U.S.C. 552(a) and 1 
CFR part 51.
    (2) For service information identified in this AD, contact Boeing 
Commercial Airplanes, Attention: Data & Services Management, P.O. Box 
3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-544-5000, 
extension 1; fax 206-766-5680; e-mail me.boecom@boeing.com; Internet 
https://www.myboeingfleet.com.
    (3) You may review copies of the service information at 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.
    (4) You may also review copies of the service information that is 
incorporated

[[Page 39820]]

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: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Issued in Renton, Washington, on June 25, 2010.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2010-16435 Filed 7-12-10; 8:45 am]
BILLING CODE 4910-13-P
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