Airworthiness Directive · Amendment 39-15856 · Boeing Model 767-200 and 767-300 Series Airplanes
Boeing Model 767-200 and 767-300 Series Airplanes
This AD applies to Boeing Model 767-200 and 767-300 series airplanes, certificated in any category; as identified in Boeing Alert Service Bulletin 767-53A0147, dated August 16, 2007.
We are adopting a new airworthiness directive (AD) for certain Boeing Model 767-200 and 767-300 series airplanes. This AD requires detailed inspections of the aft pressure bulkhead for damage, mid- frequency eddy current (MFEC) and low frequency eddy current (LFEC) inspections of radial web lap splices, tear strap splices, and super tear strap splices for cracking, and corrective actions if necessary. This AD results from analysis that indicates fatigue cracks of the web lap splice, tear strap splice, or super tear strap splice of the aft bulkhead are expected to occur on certain Boeing Model 767-200 and 767- 300 series airplanes. We are issuing this AD to detect and correct fatigue cracks of the aft pressure bulkhead, which could result in rapid decompression of the passenger compartment and possible damage or interference with airplane control systems that penetrate the bulkhead, and consequent loss of controllability of the airplane.
Comply with this AD within the compliance times specified, unless already done.
Except as provided by paragraphs (f)(1) and (f)(2) of this AD: At the applicable compliance time and repeat intervals listed in Tables 1 and 2 of paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 767-53A0147, dated August 16, 2007, do detailed inspections of the aft pressure bulkhead for damage, mid-frequency eddy current (MFEC) and low frequency eddy current (LFEC) inspections of radial web lap splices, tear strap splices, and super tear strap splices for cracking, and applicable corrective actions, by accomplishing all the applicable actions specified in the Accomplishment Instructions of the service bulletin.
(1) Where Table 1 of paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 767-53A0147, dated August 16, 2007, specifies a compliance time after the date on that service bulletin, this AD requires compliance within the specified compliance time after the effective date of this AD.
(2) Where Boeing Alert Service Bulletin 767-53A0147, dated August 16, 2007, specifies a compliance time of “As given by Boeing” or to contact Boeing for the appropriate action, this AD requires, before further flight, inspections of the area of repair and repair of any damaged/cracked part, as applicable, using a method approved in accordance with the procedures specified in paragraph (g) of this AD.
