# SDR EVAS91004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2002
- Submitted: August 7, 2002
- Operation: Air carrier
- Aircraft: [N1643](https://openairdocs.org/aircraft/N1643), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 27174
- Engine: Ge CF680C2B2
- System (JASC): [7100 · Powerplant System](https://openairdocs.org/jasc/7100)
- Part: Hmu
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: TO
- How discovered: O
- Nature of condition: X, J
- Precautionary procedure: E, C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EVAS91004

## Discrepancy

DURING TAKE OFF, NR 1 ENGINE LOW N2 THEN FLAME OUT. ON GROUND REPLACED EEC & HMU, OPR CHECKED NORMAL.

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