# SDR YWYR201209157151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2009
- Submitted: September 15, 2012
- Operation: General aviation
- Aircraft: [N440TM](https://openairdocs.org/aircraft/N440TM), registered now
- Make and model: Lancar LC41550FG
- Aircraft serial: 411028
- Aircraft time: 179 hours
- Engine: Cont TSIO550C
- Engine time: 179 hours
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Spark Plug
- Part number: RHB32S
- Condition: Cracked
- Part time: 179 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YWYR201209157151

## Discrepancy

DURING ANNUAL INSPECTION, 1 OF THE 12 ENGINE SPARK PLUGS WAS FOUND TO HAVE A CRACKED ELECTRODE INSULATOR.

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