# SDR 2017FA0000047

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2017
- Submitted: February 7, 2017
- Operation: General aviation
- Aircraft: [N6260Z](https://openairdocs.org/aircraft/N6260Z), registered now
- Make and model: Piper PA-25
- Registry model: [Piper PA-25](https://openairdocs.org/model/piper-pa-25) (OpenAirDocs)
- Aircraft serial: 25321
- Aircraft time: 6,934 hours
- Engine: Lyc O360A1A
- Engine time: 2,707 hours
- Propeller: Mcauly 1A200*
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Spark Plug
- Part number: SLSTD1872
- Condition: Departed
- Location: Nr 3 Cylinder
- Part time: 51 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: D, R, B
- Precautionary procedure: B, E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2017FA0000047

## Discrepancy

DURING CRUISE , THE NR 3 CYLINDER, LOWER SPARK PLUG, DEPARTED THE ENGINE, CAUSING A SUBSTANTIAL LOSS OF POWER.  THE SUSPECT SPARK PLUG WAS RECOVERED,  AND WAS FOUND TO HAVE THE HELICOIL FROM THE CYLINDER STILL FIRMLY ATTACHED.

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