# SDR FDEA201512103970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 2015
- Submitted: December 14, 2015
- Operation: Air carrier
- Aircraft: [N684FE](https://openairdocs.org/aircraft/N684FE), registered now
- Make and model: Airbus A300 F4-605R
- Registry model: [Airbus A300 F4-605R](https://openairdocs.org/model/airbus-industrie-a300-f4-605r) (OpenAirDocs)
- Aircraft serial: 802
- Aircraft time: 23,822 hours, 13,182 cycles
- Engine: Ge CF680
- Engine time: 2,931 hours, 1,590 cycles
- System (JASC): [7321 · Fuel Control/Turbine Engines](https://openairdocs.org/jasc/7321)
- Part: Hmu
- Part number: 442275
- Part serial: BECK1377
- Condition: Malfunctioned
- Location: Nr 2 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201512103970

## Discrepancy

CRUISE FLIGHT AT FL 350L, ENG NR 2  N 1, EGT & FUEL  FLOW BECAME UNSTABLE, CONTINUOUSLY FLUCTUATING.  ENG STABILIZED ONCE ON DESCENT BEGAN & WAS NORMAL THROUGH LANDING & TAXI.  REPLACED HMU & FUEL PUMP.

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