# SDR Q2S2008F00001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 21, 2008
- Submitted: July 22, 2008
- Operation: Air carrier
- Aircraft: [N749SA](https://openairdocs.org/aircraft/N749SA), registered now
- Make and model: Boeing 747-300 SERIES
- Registry model: [Boeing 747-300 SERIES](https://openairdocs.org/model/boeing-747-300-series) (OpenAirDocs)
- Aircraft serial: 24194
- Aircraft time: 70,034 hours, 12,511 cycles
- Engine: Pwa JT9D7R4G2
- Engine time: 72,408 hours, 12,558 cycles
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Compressor
- Condition: Stalled
- Location: Nr 1 Engine
- Stage of operation: TO
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Q2S2008F00001

## Discrepancy

WHILE THROTTLING ENGINE TO TAKEOFF POWER, ENGINE NR 1 HAD MULTIPLE COMPRESSOR STALLS.  TAKEOFF POWER WAS 1.53, COMPRESSOR STALLS STARTED WHEN POWER WAS APPROACHING 1.35. AIRCRAFT RETURNED TO BLOCKS.  (K)

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