AD 2005-19-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-301 | Airworthiness Directives; Airbus Model A330-301, -321, -322, -341, and -342 Airplanes; and Model A340-200 and A340-300 Series Airplanes |
Unsafe Condition
Cracks were found during fatigue tests at the attachment between the canted lower flange of the floor beam and the pressure diaphragm in front of frame (FR) 48 on both left- and right-hand floor beams. The cracks extended between two fasteners close to FR48 on the canted lower flange of the floor beam. An additional crack was found in the flange radius of the floor beam, resulting from excessive bending of the canted lower flange.
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Required Actions
Repetitive high-frequency eddy current (HFEC) inspections are required for cracks of the inboard lower flange and radius of the left- and right-hand outboard floor beams at FR48. If cracks are found, operators must contact Airbus for repair instructions or perform stop-drilling and repair procedures as specified. Operators may also install new stainless steel doublers under the floor beam as an optional terminating action to limit bending movement.
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Compliance Time
Within specified time limits for repairs, as outlined in the service bulletins.
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Affected Aircraft
Airbus Model A330-301, -321, -322, -341, and -342 airplanes; and Model A340-200 and A340-300 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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