# SDR 97ZZZM430

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 23, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N864MA](https://openairdocs.org/aircraft/N864MA), registered now
- Make and model: Dhav DHC8102
- Aircraft serial: 363
- Engine: Pwa PW120A
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Hmu
- Part number: 7863916
- Condition: Failed
- Location: Rt Engine
- Stage of operation: TO
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZM430

## Discrepancy

FLT 2912 - ON TAKEOFF, WHEN SWITCHING FROM TOP TO NORMAL, AIRCRAFT RECEIVED A STRONG SURGE FROM BOTH ENGINES.  REMOVED AND REPLACED RIGHT HMU AND ECU.  RETRIMMED BOTH ENGINES.  REFERENCE MALA975330.

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