What was found
AIRCRAFT NLG DID NOT RETRACT AFTER TAKEOFF. ABLE TO LAND WITHOUT INCIDENT. UPON INSPECTION, TECHNICIANS FOUND CENTERING SWITCH OUT OF ADJUSTMENT. TECHNICIANS CORRECTED SWITCH. AIRCRAFT MAY HAVE EXPERIENCED A LANDING GEAR OVERSPEED CONDITION SO AN INSPECTION WAS PLANNED AND CONDUCTED. OEM TECH SUPPORT INSTRUCTED TECHNICIANS TO HAVE NOSE LANDING GEAR ATTACHMENT NDT INSPECTED. UPON REMOVAL OF HARDWARE, FOUND THE 2 UPPER NUTPLATES THAT SECURE THE BOLTS THAT ATTACH THE FITTING-HINGE FWD (RH) P/N- 215-34129-1, HAD STRIPPED THREADS. THESE BOLTS WERE NOT FOUND TO HAVE DAMAGED THREADS AND WERE HELD IN PLACE BY LOCTITE ONLY, AS THE NUTPLATE THREADS WERE COMPLETELY STRIPPED!