AD 64-04-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | American Champion Aircraft Corp. | 7GC | Airworthiness Directives; Champion Model 7GCB, 7GCBA, 7KC, and All Models 7GC, 7GCA and 7HC Series Aircraft |
| aircraft | American Champion Aircraft Corp. | 7GCA | Airworthiness Directives; Champion Model 7GCB, 7GCBA, 7KC, and All Models 7GC, 7GCA and 7HC Series Aircraft |
| aircraft | American Champion Aircraft Corp. | 7GCB | Airworthiness Directives; Champion Model 7GCB, 7GCBA, 7KC, and All Models 7GC, 7GCA and 7HC Series Aircraft |
| aircraft | American Champion Aircraft Corp. | 7GCBA | Airworthiness Directives; Champion Model 7GCB, 7GCBA, 7KC, and All Models 7GC, 7GCA and 7HC Series Aircraft |
| aircraft | American Champion Aircraft Corp. | 7HC | Airworthiness Directives; Champion Model 7GCB, 7GCBA, 7KC, and All Models 7GC, 7GCA and 7HC Series Aircraft |
| aircraft | American Champion Aircraft Corp. | 7KC | Airworthiness Directives; Champion Model 7GCB, 7GCBA, 7KC, and All Models 7GC, 7GCA and 7HC Series Aircraft |
Unsafe Condition
Engine power loss due to the carburetor alternate air door being sucked into the engine.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Lock the door in the closed position using a 0.040 x 1/2 x 4 1/2 5052-H34 aluminum strap with AN 515-8-6 screws and AN 365-832 nuts, or remove the door assembly and cover the opening with a 0.040 x 4 x 4 5052-H34 aluminum patch using eight AN 470AD3-4 rivets.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 50 hours' time in service after the effective date of this AD unless already accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
American Champion Aircraft Corp. models 7GC, 7GCA, 7GCB, 7GCBA, 7HC, and 7KC with the 4-1099 Airscoop Box and elliptical frame air filter.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.