What was found
(CAN) THE FLIGHT CREW REPORTED AND UNSAFE GEAR LIGHT WITH NO NOSE GEAR GREEN INDICATION AFTER LANDING GEAR DOWN SELECTION. AN ALTERNATE EXTENSION WAS PERFORMED AND THE AIRCRAFT LANDED UNEVENTFULLY. MAINTENANCE INVESTIGATION REVEALED THAT A CONNECTOR PLUG FROM THE NOSEO GEAR HARNESS TO THE AIRFRAME RECEPTACLE HAD A WIRING PIN THAT HAD BEEN PUSHED BACK AND WAS NOT MAKING A POSITIVE CONNECTION IN THE RECEPTACLE. THE PIN WAS REINSTALLED AND GEAR SWINGS PERFORMED. THE AIRCRAFT WAS RETURNED TO SERVICE.