Airworthiness directives › 2012-12-14
AD 2012-12-14 Airworthiness Directives; The Boeing Company Airplanes
Models named: 767-200, -300 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 767-200 and -300 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 767-53A0228, dated July 28, 2011. Note 1 to paragraph (c) of this AD: Supplemental Type Certificate (STC) ST01920SE ( http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/082838ee177dbf62862576a4005cdfc0/$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.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within the applicable compliance time specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 767-53A0228, dated July 28, 2011, except as provided by paragraph (i)(3) of this AD: Do a high frequency eddy current (HFEC) inspection for cracking of the lower main sill inner chord around body station (STA) 883.5; a detailed inspection for cracking, corrosion damage, and any other irregularity, of the lower main sill inner chord and surrounding structure around STA 883.5; and a detailed inspection for cracking, corrosion damage, or other irregularity, of the lower main sill inner chord and surrounding structure around STA 903.5; as applicable; and do all applicable repairs; in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 767-53A0228, dated July 28, 2011, except as required by paragraphs (i)(1) and (i)(2) of this AD. Do all applicable repairs before further flight. Repeat the applicable inspections thereafter within the applicable times and intervals specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 767-53A0228, dated July 28, 2011. Doing a structural repair specified in paragraph (h) of this AD, terminates the inspections for that location only.
Unsafe condition
This AD was prompted by reports of fatigue cracking on the lower main sill inner chord of the hatch opening of the overwing emergency exit. We are issuing this AD to detect and correct fatigue cracking on the lower main sill inner chord of the hatch opening of the overwing emergency exit, which could result in reduced structural integrity of the hatch opening of the overwing emergency exit and consequent rapid decompression of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1