AD 2002-11-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Air Tractor, Inc. Models AT-502, AT-502A, AT-502B, and AT-503A Airplanes |
Unsafe Condition
Fatigue cracks originating in the outboard 3/8-inch hole of the main spar lower cap, which could propagate and result in the wing separating from the airplane during flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Eddy-current inspect the wing lower spar cap immediately prior to replacement/modification to detect and correct any crack in a bolthole before it extends to the modified center section of the wing. Report the results of the inspection to the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Immediately prior to replacement/modification of the wing lower spar cap.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Air Tractor, Inc. Models AT-502, AT-502A, AT-502B, and AT-503A airplanes, including those with Marburger Enterprises, Inc. winglets.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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