AD 64-04-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sierra Hotel Aero, Inc. | Navion D | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion E | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion F | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion G | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
Unsafe Condition
Loose rivets in the outer wing panel outboard of Wing Stations 130 and at the front tip tank attachment could lead to structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect wing panels for loose rivets and replace with next larger size or install protruding head rivets where impractical. Install 4 protruding head rivets top and bottom on stringer No. 3 at the front tip tank attachment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 10 hours' time in service after February 17, 1964 and thereafter within every 100 hours'-time in service
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Affected Aircraft
Sierra Hotel Aero, Inc. Navion D, E, F, and G aircraft, serial numbers NAV-4-2 and up.
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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