AD 51-21-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | FS 2003 Corp. | PA-12 | Airworthiness Directives; Piper All Model PA-12 Airplanes |
| aircraft | FS 2003 Corp. | PA-12S | Airworthiness Directives; Piper All Model PA-12 Airplanes |
Unsafe Condition
Cracks at the bend between the channel and flat portions of the aileron hinge brackets to false spar attachment fittings, part number N10931.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect aileron hinge brackets to false spar attachment fittings (P/N N10931) for cracks at the bend. If cracks are found, install reinforcement bracket P/N 12047. Discontinue inspections if reinforcement brackets are installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Not later than October 15, 1951, and each 100 hours of operation thereafter unless reinforcements are installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper All Model PA-12 Airplanes.
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.