# SDR CA020808006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2002
- Submitted: August 16, 2002
- Operation: General aviation
- Make and model: Cessna 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (OpenAirDocs)
- Aircraft time: 8,998 hours
- Engine: Lyc O320D2G
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Exhaust Valve
- Part number: AEL19001
- Condition: Broken
- Location: Engine Cyclinder
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA020808006

## Discrepancy

(CAN) AT CRUISING ALTITUDE, THE ENGINE LOST POWER. RPMS DROPPED TO 2000. INSPECTION OF NR 3 CYLINDER,  FOUND NO COMPRESSION.  THE EXHAUST VALVE WAS FOUND TO BE BROKEN, REPLACED THE CYLINDER.

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