# SDR 99ZZZX3163

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N425ER
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280646
- Engine: Lyc IO360L2A
- System (JASC): [8500 · Engine (Reciprocating)](https://openairdocs.org/jasc/8500)
- Part: Engine
- Condition: Malfunctioned
- Location: Engine Bay
- Part time: 916 hours
- Stage of operation: CL
- Nature of condition: R, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX3163

## Discrepancy

JUST AFTER ROTATION ON INITIAL CLIMB, THERE WAS A MOMENTARY POWER LOSS.  AFTER A THOROUGH INSPECTION, ALL EIGHT SPARK PLUGS WERE REPLACED.  AIRCRAFT IS GROUNDED AWAITING FURTHER DIAGNOSES.

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