AD 62-03-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sierra Hotel Aero, Inc. | Navion A (Army L-17B and L-17C) | Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion B | Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion D | Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion E | Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion F | Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion G | Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion (Army L-17A) | Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft |
Unsafe Condition
The landing gear selector valve end fitting P/N 145-58145-3 (heat treated and non-heat treated) has a service history of failure during attempts to extend the gear.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the gear actuating system in accordance with Navion Service Letter No. 81, dated March 31, 1961. Replace any defective parts found prior to further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours' time in service after the effective date of this AD and at each periodic inspection thereafter
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft
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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