AD 2013-20-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Various | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
Fatigue cracking in the bolt holes inboard and outboard of rib 9 on the bottom booms of the front and rear wing spars, which could result in reduced structural integrity of a wing spar.
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Required Actions
Inspect the bolt holes inboard and outboard of rib 9 on the front and rear spar bottom booms for cracks. Oversize holes and install new fasteners if cracks are detected. For certain conditions, contact the FAA or EASA for further instructions.
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Compliance Time
Within the new thresholds and intervals specified in Airbus Mandatory Service Bulletin A300-57-6037 Revision 04.
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Affected Aircraft
Airbus Model A300 B4-601, B4-603, B4-620, B4-622, B4-605R, and B4-622R airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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