# SDR 2025FA0000597

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2025
- Submitted: September 1, 2025
- Operation: General aviation
- Aircraft: [N1668C](https://openairdocs.org/aircraft/N1668C), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S11758
- Aircraft time: 5,805 hours
- System (JASC): [2800 · Aircraft Fuel System](https://openairdocs.org/jasc/2800)
- Part: Servo
- Part number: 25765362
- Part serial: AV581611329
- Condition: Contaminated
- Location: Zone 100
- Part time: 916 hours
- Stage of operation: CL
- 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/2025FA0000597

## Discrepancy

MOMENTARY ENGINE ROUGHNESS/VIBRATION/ LOSS OF POWER. PILOT REPORTED:"ON TAKEOFF OUT OF LVK AT 600 AGL THE ENGINE LOST TOTAL POWER FOR A MINIMUM OF ONE SECOND. AFTER THE LOSS OF POWER THE ENGINE IMMEDIATELY CAME BACK. I ENTERED THE TRAFFIC PATTERN AND DISCONTINUED THE FLIGHT." FUEL SERVO REPLACED

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.