# SDR 2025FA0000218

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 2025
- Submitted: March 27, 2025
- Operation: General aviation
- Aircraft: [N971TH](https://openairdocs.org/aircraft/N971TH), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Engine: Lyc IO360L2A
- Engine time: 1,578 hours
- System (JASC): [8500 · Engine (Reciprocating)](https://openairdocs.org/jasc/8500)
- Part: Engine
- Condition: Power Loss
- Stage of operation: CR
- How discovered: O
- Nature of condition: R
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2025FA0000218

## Discrepancy

WHILE IN STRAIGHT AND LEVEL FLIGHT PILOT REPORTED THE ENGINE RPM REDUCED SIGNIFYINGLY RESULTING IN POWER LOSS.  AFTER A BRIEF TIME THE ENGINE RPM BEGAN TO OPERATE NORMALLY AND POWER WAS RESTORED.  PILOT LANDED WITHOUT INCIDENT.  TROUBLESHOOTING COULD NOT DUPLICATE THE PROBLEM.

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