# SDR 95ZZZX1465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N8677U](https://openairdocs.org/aircraft/N8677U), registered now
- Make and model: Cessna 172F
- Registry model: [Cessna 172F](https://openairdocs.org/model/cessna-172f) (OpenAirDocs)
- Aircraft serial: 17252580
- Engine: Cont O300D
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Piston
- Part number: 646255
- Condition: Cracked
- Location: Nr 3 Cylinder
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX1465

## Discrepancy

PISTON CRACKED ON NR 3 CYL.  TOTAL TIME SINCE O/H MAJOR, 48 HOURS.  CRACK WAS FROM LOWER OIL RING GROOVE UPWARD APPROX 1.5 INCHES.  CYLINDER AND ALL COMPONENTS CHECK OUT GOOD.  ALL SPECS CHECK GOOD.  TELEDYNE CONTINENTAL INSPECTED AND STATED THE FAILED PISTON WAS DUE TO BEING ASSEMBLED INCORRECTLY NOT MANUFACTURING.  THIS DIAGNOSIS IS IN DISAGREEMENT BY THE A & P TECH., THE SAFETY OFFICER AND OWNER.

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