# SDR NACA20030068

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2003
- Submitted: January 20, 2003
- 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: 44636
- Aircraft time: 34,235 hours
- Engine: Pwa R2800CB3
- Engine time: 1,700 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 356993
- Part serial: 37311
- Condition: Cracked
- Location: 2
- Part time: 1,700 hours
- Component: Engine, Pwa, CB3
- Component part number: R2800
- Stage of operation: DE
- 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/NACA20030068

## Discrepancy

DISCREPANCY: #1 engine precationary shut down for excessive vibration.CORRECTIVE ACTION: Replaced #1 engine #2 cylinder. (Cracked head).

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