# SDR L7OA2012F00256

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2012
- Submitted: November 23, 2012
- Operation: Air carrier
- Aircraft: [N870BB](https://openairdocs.org/aircraft/N870BB), registered now
- Make and model: Beech 400A
- Registry model: [Beech 400A](https://openairdocs.org/model/hawker-beechcraft-400a) (OpenAirDocs)
- Aircraft serial: RK22
- Aircraft time: 8,503 hours, 7,004 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Pitch Control
- Condition: Failed
- Location: Autopilot Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/L7OA2012F00256

## Discrepancy

AUTOPILOT PITCH TRIM FAIL.  FLIGHT CREW SQUAWKED THAT IN LEVEL FLIGHT WITH THE AUTOPILOT ENGAGED, WAS GETTING A RUNAWAY STAB IN THE NOSE DOWN POSITION.  ACFT SYSTEMS PRESENTLY BEING TROUBLESHOT FOR PROBLEM.

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