# SDR CA040315006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2003
- Submitted: April 1, 2004
- Operation: General aviation
- Make and model: Snias AS350D
- Aircraft time: 9,822 hours
- Engine: Lyc LTS101600A2
- System (JASC): [7323 · Turbine Governor](https://openairdocs.org/jasc/7323)
- Part: Governor
- Part number: 43012354
- Part serial: 29974
- Condition: Failed
- Location: Overspeed
- Stage of operation: CR
- How discovered: O
- Nature of condition: W
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA040315006

## Discrepancy

(CAN) MAIN ROTOR RPM WAS FOUND TO OSCILLATE DURING CRUISE FLIGHT AND SOMETIMES DROOP DOWN -5 RPM NR.   REPLACING FUEL CONTROL UNIT, FUEL PUMP AND GOVERNOR DID NOT HELP THE PROBLEM.   REPLACING THE OVERSPEED GOVERNOR ELIMINATED ALL SYMPTOMS.

---
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.