# SDR 9809726624

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N624US](https://openairdocs.org/aircraft/N624US), registered now
- Make and model: Boeing 747251B
- Aircraft serial: 21706
- Engine: Pwa JT9D7Q
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Compressor
- Condition: Stalled
- Location: Nr 4 Engine
- Stage of operation: CL
- Nature of condition: Y
- Precautionary procedure: A, E, J
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9809726624

## Discrepancy

WHILE CLIMBING THROUGH 1400 FEET AGL, THE NR 4 ENGINE AUDIBLY COMPRESSOR STALLED AND FLAMED OUT.  THE CREW SECURED THE ENGINE, DUMPED FUEL, RETURNED TO MSP, AND LANDED WITHOUT INCIDENT.  THE NR 4 ENGINE WAS CHANGED.  EXACT PART CAUSING PROBLEM TO BE DETERMINED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.