What was found
(CAN) DURING LANDING CREW MOVED THE LANDING GEAR LEVER TO DOWN POSITION 3 GEARS SHOWED TRANSITION LIGHT BUT THE ALTERNATE INDICATION SHOWED 3 GREEN LIGHTS AND AS PER CREW MAIN GEAR WAS EXTENDED AT THIS TIME BUT THE NOSE GEAR DID NOT EXTEND. NOSE GEAR EXTENDED AFTER DOING ALTERNATE EXTENSION. FOR TS: NORMAL LANDING GEAR EXTENSION/RETRACTION AND ALTERNATE LANDING GEAR FUNCTIONAL CHECK CO AND FOUND LANDING GEAR SELECTOR HANDLE FAULTY. SELECTOR HANDLE REPLACED.