# SDR AWXA0001248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2001
- Submitted: January 19, 2001
- Operation: Air carrier
- Aircraft: N618AW
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 304
- Aircraft time: 31,964 hours, 15,108 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Computer
- Part number: B398BCM0108
- Part serial: 685
- Condition: Failed
- Location: Ee Bay
- Part time: 25,297 hours, 11,682 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA0001248

## Discrepancy

PHX - DIVERTED FLIGHT (1/14/01) - AFTER TAKEOFF FROM LAS, THE FLIGHT CREW EXPERIENCED A DUAL MCDU FAILURE; THEY WERE FROZEN ON RESPECTIVE PAGE AT THE TIME OF FAILURE AND WERE UNABLE TO INPUT DATA.  CIRCUIT BREAKER B-1 & N20 WERE RESET WITH NO HELP.  CREW SWITCHED TO STANDBY NAV SYSTEM AND DIVERTED TO PHX.  IN PHX THE PROBLEM WAS ISOLATED TO THE NR 1 FMGC WHICH WAS REPLACED AND FUNCTIONALLY CHECKED GOOD.  CURRENT NAV DATA WAS LOADED PER AWA TASK CARD A1B34321.

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