As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
( CNQR ) DURING APPROACH THE ACFT WENT TO EXTEND THE LANDING GEAR AND RECEIVED A LANDING GEAR UNLOCK LIGHT. CYCLED THE GEAR SEVERAL TIMES WITH NO CHANGE OF STATUS. DECLARED AN EMERGENCY AND BLEW THE GEAR DOWN USING THE EMERGENCY EXTENSION SYSTEM. ACFT LANDED SAFELY. TROUBLESHOT TO THE UPLOCK SWITCH BEING STUCK IN THE CLOSED POSITION, REPLACED SWITCH, SYSTEM OPS CHECKS GOOD IAW THE MM.