# SDR UIEA200400031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2004
- Submitted: March 16, 2004
- Operation: Air carrier
- Aircraft: [N498MC](https://openairdocs.org/aircraft/N498MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29259
- Engine: Ge CF680C2*
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Surges
- Location: Nr 4
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: J, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200400031

## Discrepancy

CI 351/8 ATL/ANC ATB DUE TO NR 4 ENGINE STALL:  AT SPEED V2 AFTER TAKEOFF, ENGINE NR 4 BEGAN SURGING FOLLOWED BY STALLING AND AIRFRAME SHUDDER.  ENGINE NR 4 THRUST LEVER WAS RETARDED TO STABILIZE THE ENGINE.  FUEL DUMPED TO 302 KG AND RETURNED FOR LANDING 27R ATC.  NO ENGINE EXCEEDANCE NOTED.  REMOVED AND REPLACED NR 4 ENGINE IAW WO A717101GTI.

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