AD 2012-21-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A320-214 and -232 | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
Medium-head fasteners were installed in lieu of shear-head fasteners on a certain upper panel, which could affect panel fatigue life and lead to cracking, potentially impairing structural integrity.
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Required Actions
Perform repetitive high frequency eddy current inspections for cracking of two rows of six fasteners at frame 35 between stringers 5 and 6 on the left and right sides. Repair any detected cracks before further flight using an approved method.
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Compliance Time
Before the accumulation of 35,900 total flight cycles or 88,100 total flight hours, whichever occurs first. Repeat inspections at intervals not exceeding 28,100 flight cycles or 56,300 flight hours.
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Affected Aircraft
Airbus Model A320-214 and -232 airplanes, serial numbers 3456, 3503, 3516, 3529, 3591, 3597, 3611, 3631, 3696, 3698, 3714, 3719, 3775, 3777, 3780, 3782, 3786, 3797, 3805, 3812, 3870, 3907, 3909, 3913, 3922, 3929, 3946, 3953, 3975, 3979, 3991, 4010, 4012, 4014, 4027, 4034, 4043, 4046, 4064, 4065, 4084, 4093, 4094, and 4097.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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