What was found
WE WERE CLIMBING THROUGH APPROXIMATELY FL200 WHEN WE FELT A CLUNK IN THE NOSE AREA, & THE RED, GEAR UNLOCK LIGHT ILLUMINATED & STAYED ON FOR THE DURATION OF THE FLT UNTIL SELECTED GEAR DOWN AGAIN FOR LANDING. GOT LIGHT IN CLIMB & AT THE TIME WE WERE CLIMBING AT ABOUT 250KTS. PERFORMED NLG INSPECTION. FOUND CAM SQUAT SWITCH PLATE ON THE UPPER TORQUE LINK TO BE LOOSE, TORQUED CAM SQUAT SWITCH PLATE. FOUND NLG WIRING HARNESS DAMAGED, R & R NLG WIRING HARNESS, FOUND NLG NOT FULLY EXTENDING, PERFORMED NLG STRUT REPACKING & SERVICING. PERFORMED LANDING GEAR OPS CHKD GOOD. ALL WORK DONE IAW AMM 32-20-00, 12-20-32, 32-00-00, AND CMM 32-20-01.