# SDR TSAA0277173

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2002
- Submitted: August 21, 2002
- Operation: Air carrier
- Aircraft: [N817AL](https://openairdocs.org/aircraft/N817AL), registered now
- Make and model: Boeing 737-200
- Registry model: [Boeing 737-200](https://openairdocs.org/model/boeing-737-200) (OpenAirDocs)
- Aircraft serial: 23292
- System (JASC): [7711 · Engine Pressure Ratio (EPR)](https://openairdocs.org/jasc/7711)
- Part: Transmitter
- Part number: LG80A6
- Condition: Inoperative
- Location: Nr 1 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA0277173

## Discrepancy

NR 1 ENGINE EPR DROPPED OFF ON CLIMB OUT OF 7,000 FEET.  NR 1 ENGINE EPR WAS 1.73 AND NR 2 ENGINE EPR WAS 1.85.  BOTH THE NR 1 AND NR 2 ENGINES NR 1 WAS 89 PERCENT AND NR 2 WAS 92 PERCENT.  THE AIRCRAFT RETURNED AND LANDED IN HNL WITH NO FURTHER INCIDENT.  (ETOPS A/C OR NON ETOPS FLIGHT)  MAINTENANCE INSPECTED THE NR 1 ENGINE AND PURGED THE PT2 AND PT7 LINES.  THE NR 1 ENGINE EPR TRANSMITTER WAS REPLACED IAW MM.  A HIGH POWER RUN AND POWER ASSURANCE CHECK WAS COMPLETED ON THE NR 1 ENGINE.  NO DISCREPANCIES WERE NOTED AND THE AIRCRAFT RETURNED TO SERVICE.

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