Airworthiness directives › 2016-04-21
AD 2016-04-21 Airworthiness Directives; The Boeing Company Airplanes
Applicability*9
This AD applies to all The Boeing Company Model DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-43, DC-8-51, DC-8-52, DC-8-53, DC-8-55, DC-8F-54, DC-8F-55, DC-8-61, DC-8-62, DC-8-63, DC-8-61F, DC-8-62F, DC-8-63F, DC-8-71, DC-8-72, DC-8-73, DC-8-71F, DC-8-72F, and DC-8-73F airplanes; certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (f) of AD 2008-26-07, Amendment 39-15773 (73 FR 78946, December 24, 2008), with no changes. At the times specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin DC8-57A102, dated February 12, 2008, except as provided by paragraph (h) of this AD, do the applicable inspections for fatigue cracking of the lower skin and stringers at stations Xw = 408 and Xw = −408, and do all applicable corrective actions, by accomplishing all applicable actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin DC8-57A102, dated February 12, 2008. Do all corrective actions before further flight. Thereafter, repeat the inspections at the applicable intervals specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin DC8-57A102, dated February 12, 2008, until paragraph (j) of this AD is done.
Unsafe condition
This AD was prompted by certain mandated programs intended to support the airplane reaching its limit of validity of the engineering data that support the established structural maintenance program. We are issuing this AD to detect and correct cracks in the lower skins, stringers, and fastener holes of the splice fittings, which could result in the loss of structural integrity of the airplane.
Affected ADs
This AD replaces AD 2008-26-07, Amendment 39-15773 (73 FR 78946, December 24, 2008).
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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