# SDR UALA2012031201610

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2012
- Submitted: March 13, 2012
- Operation: Air carrier
- Aircraft: N424UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 506
- Aircraft time: 59,082 hours, 22,002 cycles
- Engine: Iae V2527A5
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012031201610

## Discrepancy

WHEN USING AUTOPILOT 1FMGC DROPS OUT OF MNGD SPEED AND NAV.  REVERTS TO SLCTD SPD AND HDNG TBLSHT & SUSPECT FAC NR 1.  FAC 1 & 2 SWAPPPED FOR T-S, A-C REMOVE FROM CAT II & III UNTIL SATISFACTORY AUTOLAND TEST ACCPD. A-C IS DOWNGRADED TO CAT I STATUS.  ACCOMPLISHED SATISFACTORY CAT III TEST PER MM.  AC RETURNED TO CAT III SERVICE.

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