As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GSD FAIL 3 AMBER CAS: GSD FAIL 3 IN CRUISE FLIGHT, RAN THE QRH. HAD TO BLOW THE GEAR BOTTLE AFTER GEAR WAS DOWN BECAUSE OF NO INDICATION FROM THE FAILURE. TROUBLESHOT STALL FAIL CAS MESSAGE TO A BAD G-SWITCH. REMOVED BAD SWITCH AND INSTALLED INSTALLED A REPAIRED STALL PROTECTION COMPUTER. OP'S CHECK GOOD ALL WORK DONE IAW CL650 27-35-19.