AD 2011-26-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | Motors Ltd | Airworthiness Directives; Teledyne Continental Motors (TCM) and Rolls-Royce Motors Ltd. (R-RM) Series Reciprocating Engines |
Unsafe Condition
Migration of the magneto impulse coupling stop pin out of the magneto frame and into the gear train of the engine, potentially leading to engine failure and loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace any magneto with serial numbers (S/Ns) 99110001 through 99129999. Inspect removed magnetos for the presence of the impulse coupling stop pin. If the pin is missing, inspect the engine gear train, crankcase, and accessory case for damage, and repair or replace damaged components as necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 flight hours after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
TCM and R-RM C-125, C-145, O-300, IO-360, TSIO-360, and LTSIO-520-AE series reciprocating engines with Champion Aerospace (formerly Unison Industries) Slick Magnetos, models 6314, 6324, and 6364, with magneto serial numbers (S/Ns) of 99110001 through 99129999, inclusive.
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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