AD 92-04-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Continental Motors | IO-360-A | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-AB | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-B | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-C | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-D | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-DB | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-E | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-ES | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-G | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
| engine | Continental Motors | IO-360-GB | TELEDYNE CONTINENTAL MOTORS Model IO-360, TSIO-360, and LTSIO-360 Series Engines |
Unsafe Condition
Engine failure caused by failure of the rocker shaft hold down stud.
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Required Actions
Retorque the rocker arm shaft hold down stud nut to 110-120 inch pounds. Inspect and rework cylinder assembly as required per TCM SB M92-4, Revision 1. Mark the cylinder head with a 'B' adjacent to the assembly date.
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Compliance Time
Required prior to further flight, unless accomplished previously.
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Affected Aircraft
Teledyne Continental Motors (TCM) IO-360 series, TSIO-360 series, and LTSIO-360 series engines, including Rolls-Royce Motors TSIO-360 series engines, as listed in TCM SB No. M92-4, Revision 1, and installed on specified airplane models.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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