# SDR QMLA2026010620001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2026
- Submitted: January 6, 2026
- Operation: Air carrier
- Aircraft: [N307TS](https://openairdocs.org/aircraft/N307TS), registered now
- Make and model: Pilats PC1247
- Aircraft serial: 1413
- Aircraft time: 4,138 hours, 5,065 cycles
- Engine: Pwa PT6A67
- Engine time: 3,902 hours, 3,350 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Relay
- Condition: Malfunctioned
- Stage of operation: CL
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QMLA2026010620001

## Discrepancy

PRE-TAKEOFF, TAXI, & TAKEOFF NORMAL. AFTER LIFTING & CLIMBING, AUTOPILOT WOULD NOT ENGAGE WHEN TURNED ON.  CONTINUED FLT.  DURING CLIMB, DISPLAY 2 STARTED PULSING ON & OFF ABOUT A 2 SEC REP RATE.   APPROACHING TARGET ALTITUDE,  RUDDER TRIM OUT OF ALIGNMENT, RUDDER TRIM SHOWED NORMAL RANGE ON MFD 3,  CLINICIAN ASSISTED PERFORMING QRH TRIM RUNAWAY. 2 BLUE CAS MESSAGES: AUTOPILOT INOP & YAW DAMPER INOP,  CHOSE RED TRIM RUNAWAY WARNINGS. UNABLE TO ESTABLISH WHY OUT OF TRIM, & PUSHER ACTIVATED & STALL WARNINGS APPEARED ON PFD, DECLARED EMERGENCY. SUCCESSFUL LANDING. ORIGINAL WAS KAAO, DIVERSION WAS KICT.  REMOVED, CLEANED AND RESEATED RELAYS.

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