# SDR P5CA9701399

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N852FT
- Make and model: Boeing 747122
- Aircraft serial: 19757
- Engine: Pwa JT9D7A
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Prbc
- Part number: A39710
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: TO
- Nature of condition: M, J
- Precautionary procedure: C, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA9701399

## Discrepancy

ABORTED TAKEOFF AT LOW SPEED 100 KIAS, UNABLE TO MAINTAIN TAKEOFF POWER AT 1.43 ON NR 1 ENGINE WITHOUT EXCEEDING MAX EGT, EGT AT 932 DEGREES FOR 14 SECONDS.  VISUALLY INSPECTED ENGINE AND PERFORMED BORESCOPE PER BAC MM 72-50-0, NO ABNORMAL CONDITIONS.  DURING RUN CHECK FOUND NO ENGINE BLEED CLOSURE.  REPLACED PRESSURE RATIO BLEED CONTROLLER PER BAC MM 75-32-01, FUEL/AIR CONVERTER VALVE PER BAC MM 75-32-02.

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