# SDR NACA20040005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 2004
- Submitted: January 14, 2004
- Operation: Air carrier
- Aircraft: [N2907F](https://openairdocs.org/aircraft/N2907F), registered now
- Make and model: Doug DC-6
- Registry model: [Doug DC-6](https://openairdocs.org/model/douglas-dc-6) (OpenAirDocs)
- Aircraft serial: 533265
- Aircraft time: 35,374 hours
- Engine: Pwa R2800CB3
- Engine time: 1,040 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cam
- Part number: 76271
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 1,040 hours
- Stage of operation: TX
- How discovered: O
- Nature of condition: R
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NACA20040005

## Discrepancy

NR 1 ENGINE SHUTDOWN DUE TO DOUBLE SHORTED SECONDARY ON NR 5 & 13 CYLINDERS.  REPLACED NR 1 ENGINE DUE TO REAR CAM FAILURE.  CHECKED GOOD.

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