# SDR CA111109009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2011
- Submitted: January 23, 2013
- Operation: Air carrier
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft time: 3,594 hours
- Engine: Allsn 250C47B
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Metering Valve
- Part number: 11407504A5
- Condition: Inoperative
- Location: Hmu
- Component: Hmu
- Component part number: M25010136
- 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/CA111109009

## Discrepancy

(CAN) DURING FLIGHT, THE PILOT EXPERIENCED A RESTART FAULT CAUTION LIGHT.  HE THEN RETURNED TO BASE, DURING SHUTDOWN A FADEC DEGRADED CAUTION LIGHT CAME ON.  HE NOTIFIED MX STAFF.  THE FADEC SYS INDICATED THERE WAS A PROBLEM IN THE HMU METERING VALVE WITH A FAULT OF WFRRVF1T. THE HMU WAS REPLACED WITH A SERVICEABLE ONE. THE HMU WAS SENT  FOR INVESTIGATION.

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