# SDR DXTA2012043004967

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2012
- Submitted: April 30, 2012
- Operation: Air carrier
- Aircraft: [N531QS](https://openairdocs.org/aircraft/N531QS), registered now
- Make and model: Gulstm GVSPG550
- Aircraft serial: 5133
- Aircraft time: 5,639 hours, 1,874 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Bearing
- Part number: MS1410214K
- Condition: Seized
- Location: Elevator Horn
- Part time: 5,659 hours, 1,874 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2012043004967

## Discrepancy

AUTOPILOT 1 - FAILED AMBER CAS MESSAGE IN FLIGHT, THE LT AND RT ELEVATOR HORN HINGE BEARINGS WERE FOUND SEIZED CAUSING THE AUTOPILOT SYS TO AUTO DISCONNECT DUE TO EXCESSIVE FRICTION.

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