# SDR 9509526626

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N626US
- Make and model: Boeing 747251B
- Aircraft serial: 21708
- Engine: Pwa JT9D7Q
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Failed
- Location: Nr 3
- Stage of operation: CL
- Nature of condition: R
- Precautionary procedure: A, E, J
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9509526626

## Discrepancy

DURING CLIMB, THE NR 3 ENGINE DEVELOPED LOW EPR, N1 AND FUEL FLOW WITH HIGH EGT.  THE ENGINE HAD NO RESPONSE TO POWER LEVER MOVEMENT.  THE AIRCRAFT BEGAN A RETURN TO NRT, DUMPING 170,000 LBS OF FUEL.  DURING DESCENT, THE ENGINE EXPERIENCED A COMPRESSOR STALL AND THE ENGINE WAS SHUTDOWN.  AN UNEVENTFUL THREE ENGINE LANDING WAS ACCOMPLISHED AT NRT.  THE ENGINE WAS REPLACED AND A RUNUP CONFIRMED PROPER ENGINE OPERATION.

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