# SDR 20000329SH005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2000
- Submitted: March 29, 2000
- Operation: General aviation
- Aircraft: [N477ER](https://openairdocs.org/aircraft/N477ER), registered now
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280622
- Engine: Lyc IO360L2A
- System (JASC): [7421 · Spark Plug/Igniter](https://openairdocs.org/jasc/7421)
- Part: Spark Plug
- Condition: Dirty
- Location: Engine
- Part time: 1,062 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000329SH005

## Discrepancy

DURING FLIGHT, THE PILOT REPORTED ROUGH ENGINE OPERATION FOR SEVERAL SECONDS.  THE SPARK PLUGS WERE SERVICED.  (X)

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