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Mon, Dec 19, 2011

AD: Boeing MD-11

AD NUMBER: 2011-25-06

MANUFACTURER: Boeing Model MD-11 and MD-11F airplanes.
SUBJECT: Airworthiness Directive 2011-25-06
ACTION: Final Rule

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model MD-11 and MD-11F airplanes.

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. This AD requires replacing the anodized rub strips with new alodined rub strips 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.

The FAA is issuing this AD to correct the unsafe condition on these products.

DATES: This AD is effective January 17, 2012

FMI: AD

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