AD 52-08-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sierra Hotel Aero, Inc. | Navion B | Airworthiness Directives; Navion All Model B Aircraft |
Unsafe Condition
Collapse of flexible ducting P/N 146-42207 in the air induction system causing engine malfunction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace section P/N 146-42207 ducting between carburetor air filter assembly and carburetor air mix box with wire reinforced ducting or equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than June 15, 1952
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Affected Aircraft
Sierra Hotel Aero, Inc. Navion B aircraft, all serial numbers
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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