# SDR NACA20020063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2002
- Submitted: December 20, 2002
- Operation: Air carrier
- Aircraft: N1377K
- Make and model: Doug DC-6
- Registry model: [Doug DC-6](https://openairdocs.org/model/douglas-dc-6) (OpenAirDocs)
- Aircraft serial: 44596
- Aircraft time: 35,034 hours
- Engine: Pwa R2800CB3
- Engine time: 2,471 hours
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Spark Plug
- Part number: URHB32E
- Condition: Cracked
- Location: Nr 6 Cylinder
- Part time: 2,471 hours
- Stage of operation: CL
- 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/NACA20020063

## Discrepancy

NR 3 ENGINE PRECATIONARY SHUT DOWN DUE TO DOUBLE SHORTED SECONDARY.  REPLACED NR 3 ENGINE NR 6 CYLINDER FRONT AND REAR SPARK PLUGS. (CERAMICS BROKEN)

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