AD 2021-05-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Air | Tractor, Inc., | Airworthiness Directives; Air Tractor, Inc., Airplanes |
Unsafe Condition
cracks in the flap torque tube attachment brackets that may cause the flap actuator to detach from the flap torque tube
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
repetitive visual and dye penetrant inspections of the flap actuator attachment bracket welds for cracks and replacement if cracks are identified
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 300 hours TIS after the effective date of the AD, and then every 345 hours TIS thereafter
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
all Air Tractor Models AT-250, AT-300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-401A, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503, AT-503A, AT-504, AT-602, AT-802, and AT-802A airplanes
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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