AD 63-05-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Thrush Aircraft, Inc. | S-2B | Airworthiness Directives; Snow Model S-2 Airplanes |
| aircraft | Thrush Aircraft, Inc. | S-2C | Airworthiness Directives; Snow Model S-2 Airplanes |
| aircraft | Thrush Aircraft, Inc. | S2A | Airworthiness Directives; Snow Model S-2 Airplanes |
Unsafe Condition
Cracks in the wing main spar upper and lower spar web flange in the vicinity of the wing-fuselage attach points (approximately wing Station 19).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the wing main spar upper and lower spar web flange for cracks using at least a 10-power glass within 10 hours' time in service after the effective date. If cracks are found, repair prior to further flight per Snow Service Letter No. 23 or FAA-approved equivalent. If no cracks, repeat inspection every 25 hours' time in service until modification per Snow Service Letter No. 23 or FAA-approved equivalent is incorporated.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 10 hours' time in service after the effective date of this AD
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Affected Aircraft
Snow Model S-2 Airplanes, serial numbers 1003 through 1162
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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