# SDR 96ZZZX1142

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N59316
- Make and model: Doug DC3C
- Registry model: [Doug DC3C](https://openairdocs.org/model/douglas-dc3c) (OpenAirDocs)
- Aircraft serial: 18986
- Engine: Pwa R183092
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Camshaft
- Condition: Failed
- Location: Rt Engine
- Stage of operation: CR
- Nature of condition: E, R
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX1142

## Discrepancy

RIGHT ENGINE STARTED TO BACKFIRE AND RUN ROUGH.  ENGINE WAS SHUT DOWN IN-FLIGHT AND PROP FEATHERED.  UPON TROUBLESHOOTING, FOUND VALVES ON REAR CYLINDERS NOT ACTUATING.  SUSPECT BROKEN CAM GEAR.  ENGINE WAS REMOVED FOR REPAIR AND A SERVICEABLE ENGINE WAS INSTALLED.

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