# SDR TSAA0577033

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2005
- Submitted: August 3, 2005
- Operation: Air carrier
- Aircraft: [N817AL](https://openairdocs.org/aircraft/N817AL), registered now
- Make and model: Boeing 737-2X6C
- Registry model: [Boeing 737-2X6C](https://openairdocs.org/model/boeing-737-2x6c) (OpenAirDocs)
- Aircraft serial: 23292
- System (JASC): [7711 · Engine Pressure Ratio (EPR)](https://openairdocs.org/jasc/7711)
- Part: Transmitter
- Part number: LG80AC
- Part serial: X9
- Condition: Defective
- Location: Nr 1 Epr
- Stage of operation: TO
- How discovered: O
- Nature of condition: P
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA0577033

## Discrepancy

FLT 850 HNL - ITO.  ON TAKEOFF, NUMBER 1 ENGINE PRESSURE RATIO INDICATION STOPPED INCREASING AT 170 WHILE THE NUMBER 2 ENGINE INDICATION OPERATED NORMALLY.  CREW ABORTED TAKEOFF AT 80 KNOTS.  AIRCRAFT RETURNED TO GATE WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED THE NR 1 ENGINE EPR TRANSMITTER AND PERFORMED AN ENGINE HIGH POWER RUN UP WITH NO DEFECTS NOTED.  AIRCRAFT RETURNED TO SERVICE.

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