# SDR 2016F00122

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2016
- Submitted: May 13, 2016
- Operation: Air carrier
- Aircraft: [N824SA](https://openairdocs.org/aircraft/N824SA), registered now
- Make and model: Pilats PC1247
- Aircraft serial: 1523
- Aircraft time: 2,247 hours, 1,990 cycles
- Engine: Pwa PT6A67
- Engine time: 2,247 hours, 1,990 cycles
- Propeller: Hartzl HCE4A3D
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Adapter
- Part number: 06500195
- Part serial: KTA28102061
- Condition: Failed
- Location: Pitch Trim
- Stage of operation: AP
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2016F00122

## Discrepancy

PILOTS WERE DIRECT SMO AT THE END OF THE FLIGHT AT 5,000 FT.  AUTOPILOT WAS ENGAGED IN ALTITUDE HOLD NAV MODE.  WE RECEIVED A CAS WARNING OF PITCH TRIM RUNAWAY ALONG WITH VOICE CALLOUT TRIM RUNAWAY.  WE PUSHED THE TRIM INTERRUPT SWITCH & RAN THE QRH CHECKLIST.  THE AUTOPILOT HAD BEEN DISENGAGED WITH WARNING.  THE FIRST OFFICER WAS FLYING.  IAW QRH WE PULLED THE PITCH TRIM CIRCUIT BREAKER & PUT THE TRIM INTERRUPT SWITCH BACK TO NORM.  THE TRIM RUNAWAY DID NOT CONTINUE.  WE LANDED WITHOUT INCIDENT USING THE ALTERNATE STAB TRIM.

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