# SDR HEEA086625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2003
- Submitted: May 27, 2003
- Operation: Air carrier
- Aircraft: N142PH
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 33150
- Aircraft time: 6,602 hours
- Engine: Pwa PT6T3B
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Control Unit
- Part number: 32447066
- Part serial: A8159
- Condition: Split
- Location: Torque
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA086625

## Discrepancy

UNCONTROLLABLE TORQUE SPLIT. TESTED AND FOUND SERVO VALVE LEAKAGE CAUSING UNEVEN FLOW BETWEEN SIDES.  POLISHED SERVO VALVES AND LEVER.  UNIT TESTED SATISFACTORY.

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