# SDR NACA20020006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2002
- Submitted: February 25, 2002
- Operation: Air carrier
- Aircraft: [N7919C](https://openairdocs.org/aircraft/N7919C), registered now
- Make and model: Doug DC-6B
- Registry model: [Doug DC-6B](https://openairdocs.org/model/douglas-dc-6b) (OpenAirDocs)
- Aircraft serial: 43554
- Aircraft time: 40,213 hours
- Engine: Pwa R2800*
- Engine time: 1,621 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 356996
- Part serial: RA264
- Condition: Cracked
- Location: Nr 4 Engine
- Part time: 1,621 hours
- Stage of operation: DE
- 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/NACA20020006

## Discrepancy

SHUT DOWN NR 4 ENGINE AT 0735 ZULU DUE TO BACKFIRING.  REPLACED NR 11 CYLINDER.

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