# SDR P5CA0501419

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2005
- Submitted: December 16, 2005
- Operation: Air carrier
- Aircraft: [N921FT](https://openairdocs.org/aircraft/N921FT), registered now
- Make and model: Boeing 747283B
- Aircraft serial: 21575
- Aircraft time: 66,174 hours, 14,778 cycles
- Engine: Pwa JT9D70A
- Engine time: 44,187 hours, 9,711 cycles
- System (JASC): [7711 · Engine Pressure Ratio (EPR)](https://openairdocs.org/jasc/7711)
- Part: Transmitter
- Part number: ED7472012
- Part serial: FE101
- Condition: Failed
- Location: Engine Epr
- Stage of operation: TO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0501419

## Discrepancy

ON TAKEOFF ROLL, CREW REPORTED NR 3 ENGINE EPR WOULD NOT ADVANCE ABOVE 1.2 EPR, FULL TRAVEL OF THROTTLE HAD NO EFFECT.  TAKEOFF ABORTED AT 80 KTS IAS EPR ON NR 3 STAYED AT 1.2 UNTIL ENGINE SHUTDOWN.  REPLACED EPR TRANSMITTER, PERFORMED LEAK CHECK AND RAN ENGINE.  ALL PARAMETERS NORMAL.

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