# SDR 2000UALA00811

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2000
- Submitted: January 12, 2001
- Operation: Air carrier
- Aircraft: [N820UA](https://openairdocs.org/aircraft/N820UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 898
- Aircraft time: 7,845 hours, 2,734 cycles
- Engine: Iae V2522A5
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Computer
- Part number: B546CCM0104
- Condition: Failed
- Location: Flight Manage
- Stage of operation: CL
- 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/2000UALA00811

## Discrepancy

CAPTAIN LOST INDICATIONS FROM FMGC.  IN ADDITION, RECEIVED GPWS INOP ECAM WARNING, FOLLOWED BY NAV MODE DEGRADE ON BOTH ND''S.  *S/D*  THE FLIGHT MANAGEMENT GUIDANCE COMPUTER 1 AND THE GEAR PROX SENSOR 39GA WERE REPLACED.

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