AD 73-13-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | True Flight Holdings LLC | AA-1 | Airworthiness Directives; Grumman American Aviation Corporation Model AA-1, Model AA-1A, and Model AA-1B Airplanes |
| aircraft | True Flight Holdings LLC | AA-1A | Airworthiness Directives; Grumman American Aviation Corporation Model AA-1, Model AA-1A, and Model AA-1B Airplanes |
| aircraft | True Flight Holdings LLC | AA-1B | Airworthiness Directives; Grumman American Aviation Corporation Model AA-1, Model AA-1A, and Model AA-1B Airplanes |
Unsafe Condition
The absence of placards indicating prohibited spins and information to prevent accidental spin entry could lead to unintended spin conditions and loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install new placards as specified by Grumman American Aviation Corporation Service Bulletin No. 138 or an approved alternate procedure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours time in service or 30 calendar days, whichever comes first, after the effective date of this airworthiness directive
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Grumman American Aviation Corporation Model AA-1, Model AA-1A, and Model AA-1B airplanes through Serial Numbers AA-1B-0177
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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