AD 51-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Martin-Marietta Corporation | 202 | Martin Model 202 Aircraft |
Unsafe Condition
Failure of the carburetor vapor vent return line could cause fuel flow from the tank to the engine compartment, creating a fire hazard.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a swing type check valve at each fuel tank where the vapor vent line attaches to the tank to prevent flow toward the engine compartment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than April 1, 1951
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Affected Aircraft
All Martin Model 202 Aircraft
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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