# SDR NACA200000012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2000
- Submitted: July 25, 2000
- Operation: Air carrier
- Aircraft: N867TA
- Make and model: Doug DC-6B
- Registry model: [Doug DC-6B](https://openairdocs.org/model/douglas-dc-6b) (OpenAirDocs)
- Aircraft serial: 45202
- Aircraft time: 69,355 hours
- Engine: Pwa R2800CB3
- Engine time: 1,291 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 356993
- Part serial: A777XDBW
- Condition: Cracked
- Location: Nr 1 Engine
- Part time: 1,291 hours
- Component: Engine, Pwa, R2800CB3
- Component part number: R2800CB3
- Stage of operation: CR
- 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/NACA200000012

## Discrepancy

FEATHERED NR 1 ENGINE AT 0025 DUE TO ENGINE ROUGHNESS AND CONTINUOUS BACKFIRING.  SUSPECT NR 6 CYLINDER.  REPLACED NR 6 CYLINDER DUE TO CRACK.

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