Airworthiness Directive · Amendment 39-18816 · Fuselage
The Boeing Company Airplanes
(1) This AD applies to all The Boeing Company Model 767-200 and -300 series airplanes, certificated in any category.
(2) Installation of Supplemental Type Certificate (STC) ST01920SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/59027f43b9a7486e86257b1d006591ee/$FILE/ST01920SE.pdf) does not affect the ability to accomplish the actions required by this AD. Therefore, for airplanes on which STC ST01920SE 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 767-200 and -300 series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the frame-to-floor-beam joints and frames common to shear ties at certain locations of fuselage structure are subject to widespread fatigue damage (WFD). This AD requires inspections for cracking of certain frame inner chords and webs common to the floor beam joint and at frames common to the shear ties at certain sections, and corrective action if necessary. We are issuing this AD to address the unsafe condition on these products.
Except as provided by paragraph (h) of this AD, at the applicable time specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 767-53A0265, Revision 1, dated March 18, 2016 (“ASB 767-53A0265, R1”): Do the actions required in paragraphs (g)(1) and (g)(2) of this AD, and do all applicable corrective actions, in accordance with the Accomplishment Instructions of ASB 767-53A0265, R1. Do all applicable corrective actions before further flight. Repeat the inspections specified in paragraphs (g)(1) and (g)(2) of this AD thereafter at the applicable intervals specified in paragraph 1.E., “Compliance,” of ASB 767-53A0265, R1.
(1) Do a detailed inspection and a surface high frequency eddy current (HFEC) inspection for cracking of the frame inner chord and web common to the floor beam joint in sections 41 and 43 on the left and right sides.
(2) Do a detailed inspection and a surface HFEC inspection for cracking of the section 43 and 46 frames common to the shear ties on the left and right sides.
Where ASB 767-53A0265, R1 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.
