# SDR HDNA201808174924

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2018
- Submitted: August 17, 2018
- Operation: Air carrier
- Aircraft: [N810LE](https://openairdocs.org/aircraft/N810LE), registered now
- Make and model: Snias AS350B2
- Aircraft serial: 4924
- Aircraft time: 3,748 hours, 9,785 cycles
- Engine: Tmeca ARRIEL1D1
- System (JASC): [7322 · Fuel Control/Reciprocating Engines](https://openairdocs.org/jasc/7322)
- Part: Fcu
- Part number: 0164850960
- Part serial: C790B
- Condition: Malfunctioned
- Location: Engine
- Part time: 1,517 hours, 17,969 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HDNA201808174924

## Discrepancy

THE ROTOR RPM IN CRUISE FLIGHT STARTED PROGRESSIVELY INCREASING CAUSING THE PILOT TO MANUALLY MODULATE THE ENGINE FUEL CONTROL TO MAINTAIN 390 RPM.

---
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.