Airworthiness Directive · Amendment 39-18401 · Fuselage
The Boeing Company Airplanes
(1) This AD applies to all The Boeing Company Model 767-200, -300, -300F, and -400ER 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 airplanes. This AD was prompted by reports of cracking at a central part of the structure. This AD requires repetitive inspections of the skin hidden by the upper and lower splice fittings on both sides of the fuselage, and corrective action if necessary. We are issuing this AD to detect and correct fatigue cracking of the hidden fuselage skin and cracking, corrosion, and other damage to the splice fittings and adjacent visible fuselage skin and structure that could lead to loss of a primary load path between the fuselage and the wing box, and consequent reduced structural integrity of the airplane.
At the applicable time specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 767-53A0263, dated January 12, 2015, except as required by paragraph (h) of this AD, do external ultrasonic and detailed inspections to detect cracking, corrosion, or other damage at the splice fitting location, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 767-53A0263, dated January 12, 2015.
(1) If any cracking, corrosion, or other damage is not found, repeat the inspections at intervals not to exceed 6,000 flight cycles or 18,000 flight hours, whichever occurs first. Accomplishing a repair as specified in paragraph (g)(2) of this AD terminates the repetitive inspections in the repaired area only.
(2) If any cracking, corrosion, or other damage is found, before further flight, repair using a method approved in accordance with the procedures specified in paragraph (i) of this AD. The repetitive inspections of paragraph (g)(1) are terminated in the repaired area only.
Where Boeing Alert Service Bulletin 767-53A0263, dated January 12, 2015, 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.
