Airworthiness directives › 2013-07-08
AD 2013-07-08 Airworthiness Directives; The Boeing Company Airplanes
Models named: 757-200, 757-200PF, 757-200CB series, 757-300 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 757-200, 757-200PF, and 757-200CB series airplanes, certificated in any category, as identified in Boeing Service Bulletin 757-57-0060, Revision 4, dated December 7, 2012; and Model 757-300 series airplanes, certificated in any category, as identified in Boeing Service Bulletin 757-57-0061, Revision 3, dated December 7, 2012.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
For Group 1, Group 2, and Group 4, Configuration 1 airplanes, as identified in Boeing Service Bulletin 757-57-0060, Revision 4, dated December 7, 2012; and Group 1 and Group 3, Configuration 1 airplanes, as identified in Boeing Service Bulletin 757-57-0061, Revision 3, dated December 7, 2012: Within 72 months after the effective date of this AD, do a detailed inspection to detect discrepancies of the secondary fuel barrier at the front spar and the upper panel of the wing center section, and if any discrepancy exists, repair before further flight; in accordance with the Accomplishment Instructions of Boeing Service Bulletin 757-57-0060, Revision 4, dated December 7, 2012; or Boeing Service Bulletin 757-57-0061, Revision 3, dated December 7, 2012; as applicable.
Unsafe condition
This AD was prompted by reports that inspections of the wing center section revealed defective, misapplied, or missing secondary fuel vapor barriers on the center fuel tank. We are issuing this AD to detect and correct defective surfaces and insufficient thickness of the secondary fuel barrier, which could allow fuel leaks or fumes into the pressurized cabin, and allow fuel or fuel vapors to come in contact with an ignition source, which could result in a fire or an explosion.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1