# SDR 99ZZZX3066

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N77310](https://openairdocs.org/aircraft/N77310), registered now
- Make and model: Cessna 140
- Registry model: [Cessna 140](https://openairdocs.org/model/cessna-140) (OpenAirDocs)
- Aircraft serial: 11752
- Engine: Cont C8512F
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Piston Ring
- Part number: SA2000SC5293
- Condition: Failed
- Location: Engine
- Part time: 311 hours
- 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/99ZZZX3066

## Discrepancy

REMOVED CYLINDERS BECAUSE LOWER COMPRESSION.  FOUND BROKEN RINGS ON NR 2, NR 3, AND NR 4 CYLINDERS.  CAUSE UNKNOWN.

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