# SDR CA971117009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 7, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Swrngn SA226AT
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Vane
- Part number: 27191311
- Condition: Broken
- Location: Internal
- Component: Rosemount
- Stage of operation: TO
- Nature of condition: F, J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA971117009

## Discrepancy

(CAN) ON TAKEOFF, THE STALL AVOIDANCE SYSTEM (SAS) ENGAGED UNCOMMANDED.  THUS, A PRESSURE OF 80 POUNDS WAS EXERTED ON THE CONTROL COLUMN.  THE WARNING RANG AND THE PILOTS DISENGAGED THE SYSTEM AND TERMINATED THE FLIGHT.  MAINTENANCE FOUND THE POTENTIOMETER WAS CUT INSIDE, ALLOWING A FALSE INDICATION TO THE SAS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.