AD 64-07-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Univair Aircraft Corporation | F12A-3 | FLOTTORP Models F12A-3 and F12A-5 Series Propellers |
| aircraft | Univair Aircraft Corporation | F12A-5 | FLOTTORP Models F12A-3 and F12A-5 Series Propellers |
Unsafe Condition
The use of longer AN 4H7A bolts with the FS200-1 propeller spinner may cause interference with the propeller flange, leading to potential structural failure of the spinner bulkhead attachment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the six AN 4H7A bolts and reinstall shorter AN 4H6A bolts. Reuse the AN 960-416L washers, torque bolts to 70 to 90 inch-pounds, and safety wire boltheads with MS20995-C32 safety wire.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 15 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
FLOTTORP Models F12A-3 and F12A-5 Series Propellers with FS200-1 Propeller Spinner
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.