# SDR AWXA0001282

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2001
- Submitted: February 12, 2001
- Operation: Air carrier
- Aircraft: [N645AW](https://openairdocs.org/aircraft/N645AW), registered now
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 238
- Aircraft time: 28,348 hours, 12,978 cycles
- Engine: Iae V2500A1
- Engine time: 32,386 hours, 14,953 cycles
- System (JASC): [7321 · Fuel Control/Turbine Engines](https://openairdocs.org/jasc/7321)
- Part: Resolver
- Condition: Malfunctioned
- Location: Fuel Flow
- Stage of operation: CL
- 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/AWXA0001282

## Discrepancy

MAINTENANCE TROUBLESHOT IAW TSR 73-22-00-810-851 AND IAE TELEX; CELL CODE FAULT OF 59 ON FMU/HC/EEC 1 MESSAGE; (WFXCF) FUEL FLOW RESOLVER FAULT; CH B ON CONNECTOR J8 HAD HIGH RESISTANCE OF 104 OHMS BETWEEN PINS I & J (NORM: 15-78 OHMS); WIRING CHECKED GOOD; RANG OUT FMU RESOLVER ON CHANNEL B; (CONNECTOR 4000KC-C) AND RESOLVER WAS READING 82 OHMS; FOUND TCA VLV/HC/EECI MESSAGE IN GROUND SCANNING FADEC TEST; BLEED SYSTEM TESTS WERE PERFORMED - CHECKED GOOD.  THE FOLLOWING COMPONENTS WERE REPLACED DUE TO TROUBLESHOOTING PROCEDURES IN ADDITION TO THE FMU:  NR 1 ENG EEC P/N 798300-15-052 S/N 25000156 - HAMILTON STANDARD - TT 23201, TC 10818, TSR 2807 NR 1 ENG TCA.

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