# SDR AU510001525

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2005
- Submitted: June 6, 2006
- Operation: General aviation
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Engine: Ge CFM56*
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Hmu
- Part number: 1853M56P09
- Condition: Faulty
- Location: Nr 1 Engine
- Part time: 6,798 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU510001525

## Discrepancy

NR 1 ENGINE HYDROMECHANICAL UNIT (HMU) FAULTY.  INVESTIGATION FOUND THE DEFECT WAS CAUSED BY FAILURE OF THE FMV RESOLVER BODY ASSEMBLY.

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