Airworthiness Directive · Amendment 39-15844 · Boeing Model 767 Airplanes
Boeing Model 767 Airplanes
This AD applies to Boeing Model 767-200, -300, -300F, and -400ER series airplanes, certificated in any category; as identified in Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 767 airplanes. This AD requires repetitive inspections for cracking of the wing skin, and related investigative/ corrective actions if necessary. This AD results from reports of cracks found in the lower wing skin originating at the forward tension bolt holes of the aft pitch load fitting. We are issuing this AD to detect and correct cracking in the lower wing skin for the forward tension bolt holes at the aft pitch load fitting, which could result in a fuel leak and reduced structural integrity of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
For airplanes identified as Group 1, Configuration 1, 2, 3, or 6; Group 2, Configuration 1, 2, 3, or 6; and Group 3, Configuration 1 or 3; in Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007: At the later of the times specified in paragraph (f)(1) or (f)(2) of this AD, perform the detailed inspection and the external high frequency eddy current (HFEC) or dye penetrant inspections for cracking as specified in Part 1 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007. Repeat the inspections at intervals not to exceed 3,000 flight cycles or 12,000 flight hours, whichever occurs first, until the actions required by paragraph (g) or (j) of this AD are accomplished.
(1) Prior to the accumulation of 10,000 total flight cycles or 30,000 total flight hours, whichever occurs first.
(2) Within 3,000 flight cycles or 12,000 flight hours after the effective date of this AD, whichever occurs first.
For airplanes identified in paragraphs (g)(1) and (g)(2) of this AD: Perform the bolt open-hole inspections for cracking in accordance with Part 2 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, at the times specified in paragraph (g)(1) or (g)(2) of this AD, as applicable, until the requirement of paragraphs (h) or (j)(1) of this AD are accomplished. Doing the actions in this paragraph terminates the requirements of paragraph (f) of this AD.
(1) For airplanes on which the modifications of the nacelle strut and wing structure specified in any service bulletin listed in Table 1 of this AD have been done: Do the inspection at the later time specified in paragraph (g)(1)(i) or (g)(1)(ii) of this AD. Repeat the inspections at intervals not to exceed 16,500 flight cycles or 65,000 flight hours, whichever occurs first.
(i) Within 16,500 flight cycles or 65,000 flight hours, whichever occurs earlier, after accomplishment of a service bulletin identified in Table 1 of this AD.
(ii) Within 3,000 flight cycles or 12,000 flight hours after the effective date of this AD, whichever occurs first.
| Boeing Service Bulletin— | Revision level— | Dated— |
|---|---|---|
| 767-54-0080 | Original | October 7, 1999. |
| 767-54-0080 | 1 | May 9, 2002. |
| 767-54-0081 | Original | July 29, 1999. |
| 767-54-0081 | 1 | February 7, 2002. |
| 767-54-0082 | Original | October 28, 1999. |
| 767-54-0082 | 1 | November 4, 2004. |
| 767-54-0082 | 3 | September 20, 2007. |
(2) For airplanes on which the modifications of the nacelle strut and wing structure specified in any service bulletin listed in Table 1 of this AD have not been done: Do the inspection at the later of the times specified in paragraph (g)(2)(i) or (g)(2)(ii) of this AD. Repeat the inspections at intervals not to exceed 16,500 flight cycles or 65,000 flight hours, whichever occurs first.
(i) Before the accumulation of 20,000 total flight cycles or 60,000 total flight hours, whichever occurs earlier.
(ii) Within 72 months after the effective date of this AD.
For all airplanes: Doing the actions in both paragraphs (h)(1) and (h)(2) of this AD is an acceptable method of compliance for the repetitive inspection requirements of paragraph (g) of this AD after the initial paragraph (g) inspection is accomplished.
(1) Accomplishing the inspections specified in Part 1 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, within 3,000 flight cycles or 12,000 flight hours, whichever occurs first, after the accomplishment of the most recent inspection done in accordance with paragraph (g) of this AD (Part 2 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007).
(2) Repeating the inspections specified in Part 1 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, at intervals not to exceed 3,000 flight cycles or 12,000 flight hours, whichever occurs first.
(i) If cracking is found during any inspection required by paragraph (f) or (h) of this AD: Before further flight, repair in accordance with the procedures specified in paragraph (o) of this AD.
(j) If cracking is found during any inspection required by paragraph (g) of this AD: Before further flight, oversize the fastener hole in accordance with Part 2 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, except as provided by paragraphs (j)(1) and (j)(2) of this AD.
(1) If any cracking cannot be removed by oversizing the fastener hole in accordance with Part 2 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, before further flight, accomplish the freeze plug repair in accordance with Part 3 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, except as provided by paragraph (j)(2) of this AD. Accomplishing the freeze plug repair ends the repetitive inspections required by paragraphs (f) and (g) of this AD for the repaired wing only.
(2) If any cracking is outside the limits specified for the freeze plug repair in Part 3 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, before further flight, repair in accordance with the procedures specified in paragraph (o) of this AD.
For airplanes on which of the requirements of paragraph (j)(1) of this AD have been accomplished, perform the repetitive inspections specified in paragraphs (k)(1) and (k)(2) of this AD at the times specified.
(1) At the later time in paragraph (k)(1)(i) or (k)(1)(ii) of this AD: Accomplish the external inspections specified in Part 1 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007. If any cracking is found during any inspection required by this paragraph, before further flight, repair in accordance with the procedures specified in paragraph (o) of this AD. Repeat the external inspections at intervals not to exceed 3,000 flight cycles or 12,000 flight hours, whichever occurs earlier.
(i) Prior to the accumulation of 37,500 total flight cycles or 90,000 total flight hours, whichever occurs earlier.
(ii) Within 18 months after accomplishment of the freeze plug repair specified in Part 3 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007.
(2) At the later of the times specified in paragraph (k)(2)(i) or (k)(2)(ii) of this AD: Perform an internal HFEC for cracking, in accordance with Part 4 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007. If any cracking is found during any inspection required by this paragraph, before further flight, repair in accordance with the procedures specified in paragraph (o) of this AD. Repeat the inspections at intervals not to exceed 12,000 flight cycles or 48,000 flight hours, whichever occurs earlier.
(i) Prior to the accumulation of 37,500 total flight cycles or 90,000 total flight hours, whichever occurs earlier.
(ii) Within 72 months after accomplishment of the freeze plug repair specified in Part 3 of the Accomplishment Instructions of Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007.
If any cracking is found during any inspection required by this AD, and Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, specifies to contact Boeing for appropriate action: Before further flight, repair the cracking using a method approved in accordance with the procedures specified in paragraph (o) of this AD.
Although Boeing Service Bulletin 767-57A0097, Revision 1, dated October 18, 2007, specifies to submit certain information to the manufacturer, this AD does not include that requirement.
Actions done before the effective date of this AD in accordance with Boeing Alert Service Bulletin 767-57A0097, dated September 29, 2005, are acceptable for compliance with the corresponding requirements of this AD.
