# SDR 2025FA0000603

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2025
- Submitted: September 1, 2025
- Operation: General aviation
- Aircraft: [N1806M](https://openairdocs.org/aircraft/N1806M), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S13177
- Aircraft time: 992 hours
- Engine: Lyc IO360L2A
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Servo
- Part number: AV25765362
- Part serial: AV288721110
- Condition: Contaminated
- Location: Fuel Sys
- Part time: 992 hours
- Stage of operation: CL
- 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/2025FA0000603

## Discrepancy

MOMENTARY ENGINE ROUGHNESS/VIBRATION/LOSS OF POWER. PILOT SQUAWK: PARTIAL LOSS OF ENGINE POWER RIGHT AFTER TAKEOFF, 200-300 RPMS, CAME BACK AFTER A COUPLE SECONDS BUT DID NOT WANT TO CONTINUE FLIGHT. FUEL SERVO REPLACED.

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