AD 2013-22-23
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Aermacchi S.p.A. Airplanes |
| engine | Lycoming | O-540 wide cylinder flange | Airworthiness Directives; Aermacchi S.p.A. Airplanes |
Unsafe Condition
The set screw that fixes the setting of the propeller governor idler gear shaft was not in the proper position, potentially leading to loss of engine oil pressure indications and emergency landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the set screw (Part Number AN565B1032H) that fixes the setting of the propeller governor idler gear shaft to ensure it is in the proper position. If discrepancies are found, take applicable corrective actions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Aermacchi S.p.A. Models F.260, F.260B, F.260C, F.260D, F.260E, F.260F, S.208, and S.208A airplanes equipped with a Lycoming O-540 wide cylinder flange engine with a front crankcase mounted propeller governor.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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