Airworthiness Directive · Amendment 39-18516 · Fuselage
The Boeing Company Airplanes
This AD applies to all The Boeing Company Model 757-200, -200CB, -200PF, and -300 airplanes, certificated in any category.
We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 757 airplanes. This AD was prompted by a report of cracking in the fuselage frame. This AD requires inspections for cracking in the fuselage frame, left and right sides, and repair if necessary. We are issuing this AD to detect and correct fuselage frame fatigue cracking. Such cracking could result in loss of structural integrity and the inability to sustain loading conditions.
At the applicable time specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 757-53A0099, dated September 18, 2014, except as required by paragraph (h) of this AD, do detailed and high frequency eddy current inspections for cracking in the fuselage frames in Section 43 at stringer 25, left and right sides, and frames in Section 46 at stringer 24, left and right sides, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 757-53A0099, dated September 18, 2014.
(1) If cracking is not found, repeat the inspections at intervals not to exceed 12,000 flight cycles.
(2) If any cracking is found, before further flight, repair using a method approved in accordance with the procedures specified in paragraph (i) of this AD. Repeat the inspections at intervals not to exceed 12,000 flight cycles in unrepaired areas.
Where Boeing Alert Service Bulletin 757-53A0099, dated September 18, 2014, specifies a compliance time “after the Original Issue date of this Service Bulletin,” this AD requires compliance within the specified compliance time after the effective date of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
