AD 2009-26-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | Corporation Model MD-11 and MD-11F | Airworthiness Directives; McDonnell Douglas Corporation Model MD-11 and MD-11F Airplanes |
Unsafe Condition
The potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
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Required Actions
Inspect to determine if wires touch the upper surface of the center upper auxiliary fuel tank and mark the location, if necessary. Inspect all wire bundles above the center upper auxiliary fuel tank for splices and damage. Inspect for damage to the fuel vapor barrier seal and upper surface of the center upper auxiliary fuel tank. Install nonmetallic barrier/shield sleeving, new clamps, new attaching hardware, and a new extruded channel, if necessary.
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Compliance Time
Within 60 months of the effective date
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Affected Aircraft
McDonnell Douglas Corporation Model MD-11 and MD-11F airplanes, certificated in any category, as identified in Boeing Service Bulletin MD11-28-126, Revision 1, dated June 18, 2009.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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