# SDR UALA2012121207174

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2012
- Submitted: January 14, 2013
- Operation: Air carrier
- Aircraft: [N117UA](https://openairdocs.org/aircraft/N117UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 28810
- Aircraft time: 56,806 hours, 6,803 cycles
- Engine: Pwa PW4056
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Transducer
- Condition: Fluctuates
- Location: Nr 3 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012121207174

## Discrepancy

CREW REPORTED (SOMEWHERE NEAR PDX) AT FL370 NR 3 ENGINE "FLUCTUATED" FOR ABOUT 10 MIN.  SPEED WAS .86+,THEY NOTED THE FUEL FLOW WAS SLIGHTLY LESS THAT THE OTHER ENGINES, N1 WAS 80.6 - 82.2, N2 WAS 83-85, EPR WAS 1.13 - 1.20.  REPLACED NR 3 END N1 TRANSDUCER PER MM.

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