# SDR 99UAL900468

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N432UA](https://openairdocs.org/aircraft/N432UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 587
- Engine: Iae V2527A5
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Transducer
- Part number: 422081100
- Condition: Failed
- Location: Auto Pilot
- Stage of operation: CR
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99UAL900468

## Discrepancy

IN CRUISE WITH AUTOPILOT 2 ENGAGED, AIRCRAFT EXPERIENCED AN UNCOMMANDED PITCH UP AND A SUBSEQUENT ELEVATOR AND AILERON COMPUTER 2 PITCH FAULT DISPLAY ON UPPER ELECTRONIC CENTRALIZED AIRCRAFT MONITORING UNIT.  AUTOPILOT 1 OPERATES NORMALLY.  FLIGHT DIVERTED TO PIT.  THE ACTUATOR POSITION TRANSDUCER WAS FAULTY (FAULT WAS ELAC 2 THS 9CE).  TRANSDUCER IS NON-STOCK.  THE THS ELECTRONIC MODULE AND TRANSDUCER WERE REPLACED.  THE AIRCRAFT HAD NO FURTHER PROBLEMS.

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