# SDR 99ZZZX4259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N486ER](https://openairdocs.org/aircraft/N486ER), registered now
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280670
- Engine: Lyc IO360L2A
- System (JASC): [8500 · Engine (Reciprocating)](https://openairdocs.org/jasc/8500)
- Part: Engine
- Condition: Malfunctioned
- Location: Forward
- Part time: 1,069 hours
- Stage of operation: CR
- Nature of condition: E, R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX4259

## Discrepancy

DURING NORMAL CRUISE, THE CREW EXPERIENCED MOMENTARY ENGINE ROUGHNESS.  THE ENGINE WAS THOROUGHLY INSPECTED AND NO SUSPECT ITEMS WERE FOUND.

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