# SDR CA020430002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2002
- Submitted: May 7, 2002
- Operation: General aviation
- Make and model: Piper PA-31
- Registry model: [Piper PA-31](https://openairdocs.org/model/piper-pa-31) (OpenAirDocs)
- Aircraft time: 10,479 hours
- Engine: Lyc TIO540A2B
- Propeller: Hartzl HCE3YR2A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Exhaust Valve
- Part number: LW16740
- Condition: Separated
- Location: Nr 6 Cylinder
- Stage of operation: AP
- How discovered: O
- Nature of condition: R, E
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA020430002

## Discrepancy

(CAN) UPON FINAL THE PILOT NOTICED THE RT ENGINE STARTED TO RUN ROUGH & MAP CLIMB WITH A CHT DECREASE. WHEN THE POWER WAS REDUCED TO IDLE AT LANDING THE ENGINE STOPPED.  THE PILOT RESTARTED THE ENGINE & TAXIED IN, BUT NOTICED THE RT ENGINE TO BE RUNNING ROUGH. UPON INSPECTION THE NR 6 CYLINDER EXHAUST VALVE WAS MISSING. DAMAGE TO THE PISTON AND CYLINDER HEAD HAD OCCURRED. THE ENGINE WAS REMOVED FOR OVERHAUL.

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