AD 2019-10-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Aircraft Inc | Airworthiness Directives; Aviat Aircraft Inc. Airplanes |
Unsafe Condition
The fuel tank vent check valves are sticking in the closed position causing fuel starvation to the engine.
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Required Actions
Revising the airplane flight manual (AFM) to add a pre-flight check of the fuel vent check valves for proper operation and replacing any inoperative fuel vent check valve with an airworthy part.
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Compliance Time
Before further flight
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Affected Aircraft
Aviat Aircraft Inc. Models A-1C-180 and A-1C-200 airplanes equipped with a Rapco part number RA1798-00-1 fuel vent check valve installed on either wing or both.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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