Airworthiness Directives; Boeing Model 757-200, -200PF, and -200CB Series Airplanes, 13436-13438 [E8-4944]

Download as PDF 13436 Federal Register / Vol. 73, No. 50 / Thursday, March 13, 2008 / Rules and Regulations CASA, Military Transport Aircraft Division, Integrated Customer Services, Technical Services, Avenida de Aragon 404, 28022Madrid, Spain; telephone 34–91–624–6306; fax 34–91–585–5505; E-mail: MTA.TechnicalService@casa.eads.net. In any case, a confirmation of the accomplishment of this inspection is required to be sent to EADS–CASA. FAA AD Differences Note 2: This AD differs from the MCAI and/or service information as follows: (1) Compliance Time: For certain airplanes, the compliance time required by the MCAI or service information for performing the HFEC inspections is before further flight; however, to avoid inadvertently grounding airplanes, this AD requires performing those inspections within 14 days after the effective date of this AD. (2) Repair: Although the MCAI or service information does not include a repair procedure for cracking, this AD requires the repair of any cracking per the FAA or EASA (or its delegated agent). mstockstill on PROD1PC66 with RULES Other FAA AD Provisions (h) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM–116, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057– 3356; telephone (425) 227–1112; fax (425) 227–1149. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120–0056. Related Information (i) Refer to MCAI EASA Emergency Airworthiness Directive 2007–0108–E, dated April 18, 2007, and EADS–CASA All Operator Letter 212–018, Revision 2, dated March 20, 2007, for related information. Material Incorporated by Reference (j) You must use EADS–CASA All Operator Letter 212–018, Revision 1, dated December 1, 2006; and EADS–CASA All Operator Letter 212–018, Revision 2, dated March 20, 2007; VerDate Aug<31>2005 16:22 Mar 12, 2008 Jkt 214001 as applicable; 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 EADS–CASA All Operator Letter 212–018, Revision 2, dated March 20, 2007, under 5 U.S.C. 552(a) and 1 CFR part 51. (2) The Director of the Federal Register previously approved the incorporation by reference of EADS–CASA All Operator Letter 212–018, Revision 1, dated December 1, 2006, on March 14, 2007 (72 FR 8610, February 27, 2007). (3) For service information identified in this AD, contact Construcciones Aeronauticas, S.A., Getafe, Madrid, Spain. (4) You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or 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/cfr/ibrlocations.html. Issued in Renton, Washington, on March 4, 2008. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–4936 Filed 3–12–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–0270; Directorate Identifier 2007–NM–211–AD; Amendment 39–15426; AD 2008–06–14] RIN 2120–AA64 Airworthiness Directives; Boeing Model 757–200, –200PF, and –200CB Series Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: SUMMARY: We are adopting a new airworthiness directive (AD) for certain Boeing Model 757–200, –200PF, and –200CB series airplanes. This AD requires doing an ultrasound inspection for disbonded tear straps not mechanically fastened to the skin, and related investigative and corrective actions, if necessary. This AD results from reports indicating that bonded skin panels may not have been correctly anodized in phosphoric acid before the tear strap doubler was bonded to the skin. We are issuing this AD to detect and correct a weak bond between the skin and tear strap. Such disbonding could reduce the ability of the skin to resist cracks and could adversely affect the structural integrity of the airplane. PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 This AD is effective April 17, 2008. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of April 17, 2008. ADDRESSES: For service information identified in this AD, contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124–2207. DATES: 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: Jason Deutschman, Aerospace Engineer, Airframe Branch, ANM–120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 917–6449; 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 Boeing Model 757–200, –200PF, and –200CB series airplanes. That NPRM was published in the Federal Register on December 17, 2007 (72 FR 71277). That NPRM proposed to require an ultrasound inspection for disbonded tear straps not mechanically fastened to the skin, and related investigative and corrective actions, if necessary. Comments We gave the public the opportunity to participate in developing this AD. We considered the two comments received. Boeing and Continental Airlines support the NPRM. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting the AD as proposed. Costs of Compliance There are 744 airplanes of the affected design in the worldwide fleet. This AD E:\FR\FM\13MRR1.SGM 13MRR1 Federal Register / Vol. 73, No. 50 / Thursday, March 13, 2008 / Rules and Regulations affects 487 airplanes of U.S. registry. The required actions take about 16 work hours per airplane, at an average labor rate of $80 per work hour. Based on these figures, the estimated cost of the AD for U.S. operators is $623,360, or $1,280 per airplane. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ‘‘Subtitle VII: Aviation Programs,’’ describes in more detail the scope of the Agency’s authority. We are issuing this rulemaking under the authority described in ‘‘Subtitle VII, Part A, Subpart III, Section 44701: General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), 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. mstockstill on PROD1PC66 with RULES List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: I 2008–06–14 Boeing: Amendment 39–15426. Docket No. FAA–2007–0270; Directorate Identifier 2007–NM–211–AD. Effective Date (a) This airworthiness directive (AD) is effective April 17, 2008. Affected ADs (b) None. Applicability (c) This AD applies to Boeing Model 757– 200, –200PF, and –200CB series airplanes, certificated in any category; as identified in Boeing Special Attention Service Bulletin 757–53–0077, Revision 1, dated August 6, 2007. Unsafe Condition (d) This AD results from reports indicating that bonded skin panels may not have been correctly anodized in phosphoric acid before the tear strap doubler was bonded to the skin. We are issuing this AD to detect and correct a weak bond between the skin and tear strap. Such disbonding could reduce the ability of the skin to resist cracks and could adversely affect the structural integrity of the airplane. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Initial Inspection (f) At the applicable initial compliance time in paragraph (f)(1) or (f)(2) of this AD, do an external ultrasound inspection for disbonded tear straps not mechanically fastened to the skin between stations 439 to 900, and 1180 to 1621, and between stringers 10 left and 10 right, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 757–53– 0077, Revision 1, dated August 6, 2007. (1) For airplanes with less than or equal to 21,000 total flight cycles: Before the accumulation of 24,000 total flight cycles, but no earlier than 18,000 total flight cycles. (2) For airplanes with more than 21,000 total flight cycles: Within 3,000 flight cycles after the effective date of this AD. Adoption of the Amendment Repetitive Inspection (g) If no disbonding is found during the ultrasound inspection required by paragraph (f) of this AD, repeat the inspection once before 36,000 total flight cycles, but no earlier than 30,000 total flight cycles. Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: Related Investigative and Corrective Actions (h) If any disbonding is found during the ultrasound inspection required by paragraph (f) or (g) of this AD, do the applicable related I VerDate Aug<31>2005 16:22 Mar 12, 2008 Jkt 214001 PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 13437 investigative and corrective actions by accomplishing all the actions specified in the Accomplishment Instructions of Boeing Special Attention Service Bulletin 757–53– 0077, Revision 1, dated August 6, 2007, at the applicable compliance time specified in paragraph 1.E., ‘‘Compliance,’’ of the service bulletin; except as provided by paragraph (i) of this AD. (i) If any crack and/or corrosion is found during any inspection required by this AD, and Boeing Special Attention Service Bulletin 757–53–0077, Revision 1, dated August 6, 2007, specifies to contact Boeing for appropriate action: Before further flight, repair the crack and/or corrosion using a method approved in accordance with the procedures specified 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 in accordance with the procedures found in 14 CFR 39.19. (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 appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (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 an Authorized Representative for the Boeing Commercial Airplanes Delegation Option Authorization Organization who 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 Special Attention Service Bulletin 757–53–0077, Revision 1, dated August 6, 2007, 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, P.O. Box 3707, Seattle, Washington 98124–2207. (3) You may review copies of the service information incorporated by reference at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or 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. E:\FR\FM\13MRR1.SGM 13MRR1 13438 Federal Register / Vol. 73, No. 50 / Thursday, March 13, 2008 / Rules and Regulations Issued in Renton, Washington, on March 3, 2008. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–4944 Filed 3–12–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2008–0291; Directorate Identifier 2008–CE–019–AD; Amendment 39–15429; AD 2008–06–17] RIN 2120–AA64 Airworthiness Directives; PILATUS AIRCRAFT LTD. Models PC–12, PC–12/ 45, and PC–12/47 Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. AGENCY: SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: mstockstill on PROD1PC66 with RULES Some operators have reported occurrences where the rear stick-pusher cable clamp shifted forward on the elevator cable. This condition, if not corrected, may reduce the effectiveness of the stick-pusher and/or limit elevator control movement. This AD requires actions that are intended to address the unsafe condition described in the MCAI. DATES: This AD becomes effective April 2, 2008. On April 2, 2008, the Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD. We must receive comments on this AD by April 14, 2008. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: (202) 493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M– VerDate Aug<31>2005 16:22 Mar 12, 2008 Jkt 214001 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. 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 street address for the Docket Office (telephone (800) 647– 5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aerospace Engineer, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4059; fax: (816) 329–4090. SUPPLEMENTARY INFORMATION: Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA AD No: 2008–0047, dated February 28, 2008 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: Some operators have reported occurrences where the rear stick-pusher cable clamp shifted forward on the elevator cable. This condition, if not corrected, may reduce the effectiveness of the stick-pusher and/or limit elevator control movement. For the reason described above, this Airworthiness Directive (AD) requires the inspection of the stick-pusher servo-cables for correct installation, position and tension and replacement of the discrepant parts. You may obtain further information by examining the MCAI in the AD docket. Relevant Service Information PILATUS AIRCRAFT LTD. (Pilatus) has issued PC–12 Service Bulletin No. 27–018, dated November 27, 2007. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. FAA’s Determination and Requirements of the AD This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with this State of Design Authority, they have notified us PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 of the unsafe condition described in the MCAI and service information referenced above. We are issuing this AD because we evaluated all information provided by the State of Design Authority and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. Differences Between This AD and the MCAI or Service Information We have reviewed the MCAI and related service information and, in general, agree with their substance. But we might have found it necessary to use different words from those in the MCAI to ensure the AD is clear for U.S. operators and is enforceable. In making these changes, we do not intend to differ substantively from the information provided in the MCAI and related service information. We might have also required different actions in this AD from those in the MCAI in order to follow FAA policies. Any such differences are described in a separate paragraph of the AD. These requirements take precedence over those copied from the MCAI. FAA’s Determination of the Effective Date An unsafe condition exists that requires the immediate adoption of this AD. The FAA has found that the risk to the flying public justifies waiving notice and comment prior to adoption of this rule because Pilatus has confirmed four occurrences of the rear stick-pusher cable shifting forward on the elevator cable. Although all malfunction cases occurred on the ground, it cannot be excluded that flight may be attempted with a slack stick-pusher cable. If this condition happens, it could result in reduced effectivity of the stick pusher and/or limit elevator control, affecting notification of the pilot of upcoming stall and controllability of the airplane. Therefore, we determined that notice and opportunity for public comment before issuing this AD are impracticable and that good cause exists for making this amendment effective in fewer than 30 days. Comments Invited This AD is a final rule that involves requirements affecting flight safety, and we did not precede it by notice and opportunity for public comment. We invite you to send any written relevant data, views, or arguments about this AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2008–0291; Directorate Identifier 2008–CE–019– AD’’ at the beginning of your comments. E:\FR\FM\13MRR1.SGM 13MRR1

Agencies

[Federal Register Volume 73, Number 50 (Thursday, March 13, 2008)]
[Rules and Regulations]
[Pages 13436-13438]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-4944]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-0270; Directorate Identifier 2007-NM-211-AD; 
Amendment 39-15426; AD 2008-06-14]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 757-200, -200PF, and -
200CB Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Boeing Model 757-200, -200PF, and -200CB series airplanes. This AD 
requires doing an ultrasound inspection for disbonded tear straps not 
mechanically fastened to the skin, and related investigative and 
corrective actions, if necessary. This AD results from reports 
indicating that bonded skin panels may not have been correctly anodized 
in phosphoric acid before the tear strap doubler was bonded to the 
skin. We are issuing this AD to detect and correct a weak bond between 
the skin and tear strap. Such disbonding could reduce the ability of 
the skin to resist cracks and could adversely affect the structural 
integrity of the airplane.

DATES: This AD is effective April 17, 2008.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of April 17, 
2008.

ADDRESSES: For service information identified in this AD, contact 
Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-
2207.

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: Jason Deutschman, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
917-6449; 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 Boeing Model 757-200, -200PF, and -200CB series airplanes. That 
NPRM was published in the Federal Register on December 17, 2007 (72 FR 
71277). That NPRM proposed to require an ultrasound inspection for 
disbonded tear straps not mechanically fastened to the skin, and 
related investigative and corrective actions, if necessary.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We considered the two comments received. Boeing and 
Continental Airlines support the NPRM.

Conclusion

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

Costs of Compliance

    There are 744 airplanes of the affected design in the worldwide 
fleet. This AD

[[Page 13437]]

affects 487 airplanes of U.S. registry. The required actions take about 
16 work hours per airplane, at an average labor rate of $80 per work 
hour. Based on these figures, the estimated cost of the AD for U.S. 
operators is $623,360, or $1,280 per airplane.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979), 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:

2008-06-14 Boeing: Amendment 39-15426. Docket No. FAA-2007-0270; 
Directorate Identifier 2007-NM-211-AD.

Effective Date

    (a) This airworthiness directive (AD) is effective April 17, 
2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Boeing Model 757-200, -200PF, and -200CB 
series airplanes, certificated in any category; as identified in 
Boeing Special Attention Service Bulletin 757-53-0077, Revision 1, 
dated August 6, 2007.

Unsafe Condition

    (d) This AD results from reports indicating that bonded skin 
panels may not have been correctly anodized in phosphoric acid 
before the tear strap doubler was bonded to the skin. We are issuing 
this AD to detect and correct a weak bond between the skin and tear 
strap. Such disbonding could reduce the ability of the skin to 
resist cracks and could adversely affect the structural integrity of 
the airplane.

Compliance

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

Initial Inspection

    (f) At the applicable initial compliance time in paragraph 
(f)(1) or (f)(2) of this AD, do an external ultrasound inspection 
for disbonded tear straps not mechanically fastened to the skin 
between stations 439 to 900, and 1180 to 1621, and between stringers 
10 left and 10 right, in accordance with the Accomplishment 
Instructions of Boeing Special Attention Service Bulletin 757-53-
0077, Revision 1, dated August 6, 2007.
    (1) For airplanes with less than or equal to 21,000 total flight 
cycles: Before the accumulation of 24,000 total flight cycles, but 
no earlier than 18,000 total flight cycles.
    (2) For airplanes with more than 21,000 total flight cycles: 
Within 3,000 flight cycles after the effective date of this AD.

Repetitive Inspection

    (g) If no disbonding is found during the ultrasound inspection 
required by paragraph (f) of this AD, repeat the inspection once 
before 36,000 total flight cycles, but no earlier than 30,000 total 
flight cycles.

Related Investigative and Corrective Actions

    (h) If any disbonding is found during the ultrasound inspection 
required by paragraph (f) or (g) of this AD, do the applicable 
related investigative and corrective actions by accomplishing all 
the actions specified in the Accomplishment Instructions of Boeing 
Special Attention Service Bulletin 757-53-0077, Revision 1, dated 
August 6, 2007, at the applicable compliance time specified in 
paragraph 1.E., ``Compliance,'' of the service bulletin; except as 
provided by paragraph (i) of this AD.
    (i) If any crack and/or corrosion is found during any inspection 
required by this AD, and Boeing Special Attention Service Bulletin 
757-53-0077, Revision 1, dated August 6, 2007, specifies to contact 
Boeing for appropriate action: Before further flight, repair the 
crack and/or corrosion using a method approved in accordance with 
the procedures specified 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 in 
accordance with the procedures found in 14 CFR 39.19.
    (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 appropriate principal inspector (PI) in the FAA 
Flight Standards District Office (FSDO), or lacking a PI, your local 
FSDO.
    (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 an 
Authorized Representative for the Boeing Commercial Airplanes 
Delegation Option Authorization Organization who 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 Special Attention Service Bulletin 757-
53-0077, Revision 1, dated August 6, 2007, 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, P.O. Box 3707, Seattle, Washington 
98124-2207.
    (3) You may review copies of the service information 
incorporated by reference at the FAA, Transport Airplane 
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or 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.


[[Page 13438]]


    Issued in Renton, Washington, on March 3, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E8-4944 Filed 3-12-08; 8:45 am]
BILLING CODE 4910-13-P

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