AD 93-11-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Continental Motors | O-200-A | TELEDYNE CONTINENTAL MOTORS Models O-200A, O-300A, O-300C, and O-300D Engines |
| engine | Continental Motors | O-300-A | TELEDYNE CONTINENTAL MOTORS Models O-200A, O-300A, O-300C, and O-300D Engines |
| engine | Continental Motors | O-300-C | TELEDYNE CONTINENTAL MOTORS Models O-200A, O-300A, O-300C, and O-300D Engines |
| engine | Continental Motors | O-300-D | TELEDYNE CONTINENTAL MOTORS Models O-200A, O-300A, O-300C, and O-300D Engines |
Unsafe Condition
Engine failure from an incorrect connecting rod.
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Required Actions
Inspect each cylinder by positioning the piston, inserting a brass rod, and checking for synchronous movement between the piston and crankshaft. If movement is not immediate and synchronous or there is audible differential movement, replace the connecting rod with the correct serviceable part and inspect/replace other engine parts as necessary. Engines with 100+ hours TIS on the effective date require no inspection.
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Compliance Time
Required prior to further flight, unless accomplished previously.
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Affected Aircraft
Teledyne Continental Motors Models O-200A, O-300A, O-300C, and O-300D engines with specified serial numbers, installed on Aeronca, American Champion, Cessna, Maule, and Taylorcraft aircraft models.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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