# SDR QR9R20210624002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2021
- Submitted: June 24, 2021
- Operation: General aviation
- Filed by: [M1 Support Services, repair station QR9R369D](https://openairdocs.org/faa-repair-station/QR9R369D/m1-support-services.md) (OpenAirDocs)
- Aircraft: N114AH
- Make and model: Bolkms BK117C2
- Aircraft serial: 9690
- Aircraft time: 2,376 hours
- Engine: Tmeca ARRIEL1E2
- System (JASC): [7322 · Fuel Control/Reciprocating Engines](https://openairdocs.org/jasc/7322)
- Part: Fuel Control
- Part number: 164851980
- Part serial: 30173
- Condition: Fluctuates
- Location: Engine
- Part time: 2,292 hours
- Stage of operation: HO
- How discovered: O
- Nature of condition: R
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R20210624002

## Discrepancy

UNABLE TO HOVER WITH VARTOMS IN NORM MODE BECAUSE FLI NEEDLES WOULD FLUCTUATE EXCESSIVELY WITH SPREADS GREATER THAN 20% DIFFERENCE BETWEEN BOTH TORQUES, HAD TO HOVER IN THE MAN MODE NOT TO EXCEED ANY LIMITS. NOTICED THAT FLI #2 NEEDLE WAS VERY SLOW TO REACT TO COLLECTIVE APPLICATIONS AND ALWAYS LAGGED BEHIND FLI #1 NEEDLE, MORE PREVALENT WHEN REDUCING THE COLLECTIVE. FUEL CONTROL REPLACED WITH 10 HOURS TIME SINCE REPAIR.

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