# SDR 99ZZZX4684

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N76470](https://openairdocs.org/aircraft/N76470), registered now
- Make and model: Cessna 120
- Registry model: [Cessna 120](https://openairdocs.org/model/cessna-120) (OpenAirDocs)
- Aircraft serial: 10902
- Engine: Cont C8512F
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rod
- Condition: Failed
- Location: Nr 4 Cylinder
- Stage of operation: NR
- Nature of condition: R, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX4684

## Discrepancy

PILOT REPORTED LOSS OF OIL PRESSURE. THIS WAS FOLLOWED BY ABNORMAL ENGINE SOUNDS.  UPON INSPECTION, THE ENGINE TURNED FREELY, THE CABLE WAS FOUND CRACKED ABOVE THE NR 4 CYLINDER.  CRACK APPEARS TO HAVE BEEN CAUSED BY A BROKEN CONNECTING ROD.

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