Airworthiness directives › 2015-09-09
AD 2015-09-09 Airworthiness Directives; The Boeing Company Airplanes
Models named: 767-200, -300, -400ER series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 767-200, -300, and -400ER series airplanes, certificated in any category, as identified in Boeing Service Bulletin 767-27A0183, Revision 2, dated September 25, 2014.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (a) of AD 2004-07-11, Amendment 39-13555 (69 FR 17911, April 6, 2004), with revised service information. For airplanes identified in Group 1 in Boeing Service Bulletin 767-27A0183, Revision 2, dated September 25, 2014: Before the accumulation of 12,000 total flight cycles, or within 1,200 flight cycles after May 11, 2004 (the effective date of AD 2004-07-11), whichever occurs later, perform an HFEC inspection for cracks in the aft lower lug of the deflection control track on the outboard flap, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 767-27A0183, dated May 9, 2002; or Boeing Service Bulletin 767-27A0183, Revision 2, dated September 25, 2014. As of the effective date of this AD, only Boeing Service Bulletin 767-27A0183, Revision 2, dated September 25, 2014, may be used.
Unsafe condition
This AD was prompted by our determination that additional airplane models require repetitive high frequency eddy current (HFEC) inspections of the aft lower lugs of the deflection control track of the outboard flap for cracks, and replacement of any cracked deflection control track with a new track assembly. We are issuing this AD to detect and correct fatigue cracking in the aft lower lug run-out region of the deflection control track, which could result in the loss of the secondary load path for the outboard flap, resulting in the loss of the outboard flap and consequent reduced controllability of the airplane in the event that the primary load path also fails.
Affected ADs
This AD replaces AD 2004-07-11, Amendment 39-13555 (69 FR 17911, April 6, 2004).
Read the original on the Federal Register →
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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