# SDR DXTA2026010806473

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2026
- Submitted: January 8, 2026
- Operation: Air carrier
- Aircraft: [N252QS](https://openairdocs.org/aircraft/N252QS), registered now
- Make and model: Cndair CL6002B16
- Aircraft serial: 6180
- Aircraft time: 3,249 hours, 1,820 cycles
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Transmitter
- Part number: 8560077010
- Part serial: FK2281
- Condition: Faulty
- Location: Zone 100
- Stage of operation: CL
- 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/DXTA2026010806473

## Discrepancy

REPEAT WRITE-UP:  NR 2 PFD DISPLAYED ERRATIC AOA INDICATIONS.  ON TAKE-OFF AND INITIAL CLIMB OUT THE AOA WOULD DISPLAY RED AT 1.0 (FULL SCALE) AND THE LOW SPEED TAPE WOULD COME ALL THE WAY UP AND DISPLAY THE AIRSPEED RED. THIS ACTIVITY TAPERED OFF AND STOPPED AFTER CLIMBING ABOUT 3000'.  DURING CRUISE WITH NORMAL AOA AT 0.3, THE #2 PFD AOA WOULD OCCASIONALLY GO TO 0.0 FOR A FEW SECONDS.  ALL INDICATIONS ON THE NR 1 PFD WERE COMPLETELY NORMAL DURING ALL OF THIS.  NO STICK SHAKER OR AUDIBLE STALL WARNING CAME ON AT ALL.   REMOVED INOP AOA TRANSMITTER P/N: 856-0077:010 S/N: FK2281 AND REPLACED WITH CUSTOMER SUPPLIED NEW AOA TRANSMITTER P/N: 856-0077-010 S/N: FK2264 OPERATIONAL CHECK GOOD NO DEFECTS NOTED. REF: BOMBARDIER MM 34-24-07

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