AD 74-18-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Continental Motors | IO-360-A | TELEDYNE CONTINENTAL MOTORS Model IO-360-A, IO-360-C, IO-360-D, IO-360-H, TSIO-360-A, TSIO-360-C Engines |
| engine | Continental Motors | IO-360-C | TELEDYNE CONTINENTAL MOTORS Model IO-360-A, IO-360-C, IO-360-D, IO-360-H, TSIO-360-A, TSIO-360-C Engines |
| engine | Continental Motors | IO-360-D | TELEDYNE CONTINENTAL MOTORS Model IO-360-A, IO-360-C, IO-360-D, IO-360-H, TSIO-360-A, TSIO-360-C Engines |
| engine | Continental Motors | IO-360-H | TELEDYNE CONTINENTAL MOTORS Model IO-360-A, IO-360-C, IO-360-D, IO-360-H, TSIO-360-A, TSIO-360-C Engines |
| engine | Continental Motors | TSIO-360-A | TELEDYNE CONTINENTAL MOTORS Model IO-360-A, IO-360-C, IO-360-D, IO-360-H, TSIO-360-A, TSIO-360-C Engines |
| engine | Continental Motors | TSIO-360-C | TELEDYNE CONTINENTAL MOTORS Model IO-360-A, IO-360-C, IO-360-D, IO-360-H, TSIO-360-A, TSIO-360-C Engines |
Unsafe Condition
Cylinder failure due to cylinders assembled between July 1973 and November 1973, as indicated by the assembly date stamp 7-73, 8-73, 9-73, 10-73, or 11-73.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each cylinder for the assembly date stamp on the machined surface between the Rocker Box covers. Remove and replace cylinders with assembly dates 7-73, 8-73, 9-73, 10-73, or 11-73 with airworthy cylinders prior to further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours time in service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Teledyne Continental Motors engines: IO-360-A (serials 20080-R and 20084-R), IO-360-C (serials 350015, 350017, 350021, 60228-R, 60229-R, 900308, 900352), IO-360-D (serials 351048, 351055, 351060, 351075, 351076, 351077, 351080, 351081), IO-360-H (serials 353124 through 353134), TSIO-360-A (serials 301001, 301002), TSIO-360-C (serials 300162, 300170)
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
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