# SDR NACA20070015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2007
- Submitted: August 15, 2007
- 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: 38,394 hours
- Engine: Pwa R2800CB3
- Engine time: 1,045 hours
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder Head
- Part number: 356993
- Part serial: 904703
- Condition: Cracked
- Location: Engine
- Part time: 1,045 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NACA20070015

## Discrepancy

NR 2 ENGINE SHUTDOWN DUE TO HIGH CHT, 150 DEGREES AT IDLE, 250+ DEGREES AT 30 INCHES WITH COWL FLAP AT 6 DEGREES.  NR 2 ENGINE, NR 18 CYLINDER CRACKED HEAD.  REPLACED NR 18 CYLINDER PER NAC DC-6 MM SECTION V PG 16.  OP CHECKED GOOD.

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