Airworthiness directives › 2011-25-06
AD 2011-25-06 Airworthiness Directives; The Boeing Company Airplanes
Models named: MD-11, MD-11F. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
The Boeing Company Model MD-11 and MD-11F airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin MD11-55-027, dated March 17, 2011.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 60 months after the effective date of this AD, replace the anodized rub strips with new alodined rub strips, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin MD11-55-027, dated March 17, 2011.
Unsafe condition
This AD was prompted by a report that the rub strips attached to the horizontal stabilizer front spar access door location were manufactured improperly using anodized aluminum. We are issuing this AD to prevent inadequate electrical bonding between the rub strips and the fuel access door, which can contribute to possible ignition of flammable fuel vapor in the tail fuel tank as a result of a lightning strike.
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