# SDR 97ZZZX4248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Cessna T310R
- Registry model: [Cessna T310R](https://openairdocs.org/model/cessna-t310r) (OpenAirDocs)
- Engine: Cont TSIO520B
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Spring
- Part number: 637837
- Condition: Broken
- Location: Nr 3 Cyl Exh Vlv
- Part time: 180 hours
- Stage of operation: NR
- Nature of condition: E, R
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX4248

## Discrepancy

ENGINE RUNNING ROUGH.  EXHAUST VALVE LEAKING ON COMPRESSION TEST.  FOUND OUTER SPRING BROKEN 180 HOURS S.F.R.

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