AD 76-22-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | True Flight Holdings LLC | AA-5A | Airworthiness Directives; Grumman American Model AA-5A and AA-5B Airplanes |
| aircraft | True Flight Holdings LLC | AA-5B | Airworthiness Directives; Grumman American Model AA-5A and AA-5B Airplanes |
Unsafe Condition
Use of certain Stewart Warner oil coolers with model number 10568B (serial 101-579) or 10578B (serial 101-634) or illegible markings may be defective.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect oil cooler model and serial numbers. Remove and replace coolers with specified model and serial ranges or illegible markings. Record inspection results as required.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
before further flight
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Affected Aircraft
Grumman American Model AA-5A (serial AA5A-001 through AA5A-0227) and AA-5B (serial AA5B-0111 through AA5B-0359)
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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