# SDR 97ZZZX3435

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N17689](https://openairdocs.org/aircraft/N17689), registered now
- Make and model: Dhav DHC3
- Aircraft serial: 431
- Engine: Pwa R134059
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rocker Boss
- Condition: Separated
- Location: Cylinder Exhaust
- Part time: 300 hours
- Stage of operation: CL
- Nature of condition: E, R
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX3435

## Discrepancy

CYLINDER HEAD EXHAUST ROCKER BOSS SEPARATED FROM HEAD.  OCCURRED DURING TAKEOFF CLIMB.  STUCK VALVE.  CORRECT LEAD CONTENT OF FUEL.

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