What was found
(CAN) ON APPROACH , WHEN LANDING GEAR WAS LOWERED, THERE WAS NO "DOWN AND LOCKED" INDICATION ON THE NLG. THE PILOT`S ABORTED LANDING AND RETURNED TO BASE. ON APPROACH TO BASE A LOW FLY BY WAS ACCOMPLISHED TO VERIFY THE NLG WAS ACTUALLY DOWN AND LOCKED, WHICH IT WAS. A NORMAL LANDING FOLLOWED AND NO FURTHER PROBLEMS WERE ENCOUNTERED. UPON INSP BY MX. THERE WAS A BROKEN WIRE FOUND ON THE DOWNLOCK SWITCH IN THE NOSE LANDING GEAR BAY. THE WIRE WAS FIXED AND THE SYS WAS FUNCTIONALLY TESTED SERVICEABLE.