What was found
DURING APPROACH, CREW LOWERED THE LANDING GEAR AND ONLY THE LT MAIN GEAR SHOWED TO BE DOWN AND LOCKED. ABORTED THE LANDING. TOWER REPORTED THE GEAR APPEARED TO BE DOWN. RAN APPROPIATE CHECK LIST AND DETERMINED THE LANDING GEAR WAS DOWN & LOCKED. DECLARED AN EMERGENCY AND LANDED WITHOUT ISSUE. MAINTENANCE FOUND THAT THE WIRE CONNECTOR TO THE PRINTED CIRCUIT BOARD ASSEMBLY FOR THE LANDING GEAR INDICATION TESTING WAS LOOSE. WIRE CONNECTOR SECURED AND LANDING GEAR SYSTEM WAS TESTED.