Airworthiness Directive · Amendment 39-19615 · Fuselage
The Boeing Company Airplanes
(1) This AD applies to all The Boeing Company Model 757-200, -200PF, -200CB, and -300 series airplanes, certificated in any category.
(2) Installation of Supplemental Type Certificate (STC) ST01518SE does not affect the ability to accomplish the actions required by this AD. Therefore, for airplanes on which STC ST01518SE is installed, a “change in product” alternative method of compliance (AMOC) approval request is not necessary to comply with the requirements of 14 CFR 39.17.
We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 757 airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the inner skin of the lap splices, at the lower fastener row, is subject to scratch cracks that may interact with widespread fatigue damage (WFD). This AD requires a general visual inspection (GVI) of certain lap splice inspection areas for any repair common to the fuselage skin lap splice dual frequency eddy current (DFEC) inspection areas, repetitive DFEC inspections of certain lap splice inner skins for any crack, and applicable on-condition actions. We are issuing this AD to address the unsafe condition on these products.
Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 757-53A0111 RB, dated May 21, 2018, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-53A0111 RB, dated May 21, 2018.
Note 1 to paragraph (g) of this AD: Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 757-53A0111, dated May 21, 2018, which is referred to in Boeing Alert Requirements Bulletin 757-53A0111 RB, dated May 21, 2018.
(1) For purposes of determining compliance with the requirements of this AD: Where Boeing Alert Requirements Bulletin 757-53A0111 RB, dated May 21, 2018, uses the phrase “the original issue date of Requirements Bulletin 757-53A0111 RB,” this AD requires using “the effective date of this AD.”
(2) Where Boeing Alert Requirements Bulletin 757-53A0111 RB, dated May 21, 2018, specifies contacting Boeing for alternative inspections or repair instructions, this AD requires alternative inspection or repair before further flight using a method approved in accordance with the procedures specified in paragraph (i) of this AD.
(3) Inspections performed in accordance with Boeing Alert Requirements Bulletin 757-53A0111 RB, dated May 21, 2018, are not necessary in areas where existing FAA approved repairs cover the affected inspection areas; provided the outermost repair doubler extends a minimum of three rows of fasteners above and below the original group of lap splice fasteners subject to the inspection. Damage tolerance inspections specified for existing repairs must continue. Inspections outside of the repaired boundaries are still required as specified in Boeing Alert Requirements Bulletin 757-53A0111 RB, dated May 21, 2018.
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
