# SDR NACA20050029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2005
- Submitted: November 23, 2005
- Operation: Air carrier
- Aircraft: [N43872](https://openairdocs.org/aircraft/N43872), registered now
- Make and model: Doug DC-6
- Registry model: [Doug DC-6](https://openairdocs.org/model/douglas-dc-6) (OpenAirDocs)
- Aircraft serial: 533294
- Aircraft time: 37,259 hours
- Engine: Pwa R2800CB3
- Engine time: 1,096 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Part number: 356994
- Part serial: 198395
- Condition: Cracked
- Location: Nr 2 Engine
- Part time: 1,096 hours
- 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/NACA20050029

## Discrepancy

NR 2 ENGINE SHUT DOWN DUE TO RUNNING ROUGH AND WILL NOT TAKE A LEAN.  FOUND NR 2 ENGINE NR 1 CYLINDER WITH CRACKED HEAD.  REPLACED NR 1 CYLINDER IAW DC-6MM SECTION V, PG 16 & 16A.  OP CHECKED GOOD.

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