What was found
(CAN) ON APPROACH THE CREW RECEIVED A GEAR UNSAFE INDICATION FOR THE R/H MAIN LANDING GEAR WHEN GEAR SELECTED DOWN. THEY CONDUCTED A MISSED APPROACH AND A SUCCESSFUL ALTERNATE EXTENSION WAS CARRIED OUT. NO EMERGENCY WAS DECLARED, AND THE FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE DISCOVERED THE R/H GEAR UPLOCK ACTUATOR FAULTY. IT HAS BEEN REPLACED, GEAR SWINGS CARRIED OUT AND THE A/C RETURNED TO SERVICE. A/C HOURS: 60831 A/C CYCLES: 66385 PART NAME: MLG UPLOCK ACTUATOR P/N: 11300-105 S/N : DCL423/93 (TC# 20190626004)