# SDR 9516916613

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N613US
- Make and model: Boeing 747251B
- Aircraft serial: 20358
- Engine: Pwa JT9D7F
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Prbcv
- Condition: Malfunctioned
- Location: Nr 2 Engine
- Stage of operation: DE
- Nature of condition: R
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9516916613

## Discrepancy

DURING TOP OF DESCENT, THE NR 2 ENGINE EXPERIENCED A COMPRESSOR STALL WITH RISING EGT AND WAS SHUT DOWN.  A RE-LIGHT WAS ACCOMPLISHED, BUT THE POWER LEVER COULD NOT BE ADVANCED WITHOUT THE COMPRESSOR STALLING.  THE ENGINE WAS SHUT DOWN AGAIN DURING APPROACH AND AN UNEVENTFUL THREE-ENGINE LANDING WAS ACCOMPLISHED.  NO FUEL WAS DUMPED.  THE ENGINE WAS INSPECTED AND A BORESCOPE WAS ACCOMPLISHED.  THE PRESSURE RATIO BLEED CONTROL AND BLEED CONVERTER VALVE WERE REPLACED AND PROPER ENGINE OPERATION WAS CONFIRMED DURING AN ENGINE RUN-UP.

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