AD 2011-08-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A340-541 and -642 | Airworthiness Directives; Airbus Model A340-541 and -642 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Model A340-541 and -642 Airplanes |
Unsafe Condition
Cracks on the aft hinge forward fittings of the NLG aft doors (RH or LH side), extending approximately 15 millimetres from the upper hole to the edge of the fittings, due to fatigue loads and bending stress. If not corrected, these cracks could lead to the loss in flight of the door, potentially causing injury to persons on the ground or aeroplane damages.
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Required Actions
Perform repetitive detailed inspections of the aft hinge forward attachment fittings of the NLG aft doors for cracking, using methods such as high frequency eddy current inspections or fluorescent penetrant inspections. Replace the fittings if cracking is found. For airplanes where the forward fitting is replaced, perform repetitive detailed inspections of the replaced fitting; if any cracking is found, replace both forward and aft fittings with new ones.
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Compliance Time
Within the compliance times specified in the Accomplishment Instructions of Airbus Mandatory Service Bulletin A340-52-5016.
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Affected Aircraft
Airbus Model A340-541 and -642 airplanes; certificated in any category; all serial numbers.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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