AD 81-14-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | AT-6D (SNJ-5) | Airworthiness Directives; North American Model AT-6D, AT-6F and T-6G Series Airplanes |
| aircraft | The Boeing Company | AT-6F (SNJ-6) | Airworthiness Directives; North American Model AT-6D, AT-6F and T-6G Series Airplanes |
| aircraft | The Boeing Company | SNJ-7 | Airworthiness Directives; North American Model AT-6D, AT-6F and T-6G Series Airplanes |
| aircraft | The Boeing Company | T-6G | Airworthiness Directives; North American Model AT-6D, AT-6F and T-6G Series Airplanes |
Unsafe Condition
Cracks in the single piece design horizontal stabilizer rear spar connector fittings (P/N 77-21021) could result in structural failure of the horizontal stabilizer.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 20 flight hours after the effective date and every 20 flight hours thereafter until the next annual inspection, remove fairings and visually check the fittings for cracks. Replace cracked fittings before further flight. At the next annual inspection, remove fittings, perform dye penetrant inspection, replace cracked fittings, inspect fit with a feeler gauge, install shims if gaps exceed 0.010 inches, and reinstall parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 20 flight hours after the effective date of this AD and every 20 flight hours thereafter until b) is accomplished
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Affected Aircraft
North American Model AT-6D (SNJ-5), AT-6F (SNJ-6), SNJ-7, and T-6G aircraft equipped with single piece design horizontal stabilizer rear spar connector fittings (P/N 77-21021, 4 fittings per spar)
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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