# SDR AWXA0000044

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2000
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N639AW
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 471
- System (JASC): [2230 · Auto Throttle System](https://openairdocs.org/jasc/2230)
- Part: Computer
- Part number: B398BCM0108
- Condition: Unserviceable
- Location: Avionics Bay
- Part time: 23,846 hours
- Stage of operation: CL
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA0000044

## Discrepancy

AT 1000 FT AGL CAPT CALLED FOR CLIMB THRUST, AUTO THROTTLE DROPPED OFF AND ENG NR 1 DROPPED TO IDLE THRUST.  RETURNED TO AIRPORT USING MANUAL THRUST WHICH OPERATED NORMAL.  DE-MODED ACFT AFTER FMGC -108 UPGRAGE PER E.O. 22-10-28.  REPLACED FLIGHT MANAGEMENT AND GUIDANCE COMPUTER -- MOD TO BE REACCOMPLISHED COMPLETED WITHIN 14 DAYS.  CURRENT HISTORY: EO 22-10-28 (FMGC UPGRADE) WAS COMPLIED WITH  PRIOR TO EVENT.  VERIFIED THE NR 1 POS -108 COMPUTER BAD USING A/C AS TEST BED.

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