What was found
AIR TURNBACK DURING T/O, NOSE GEAR WOULD NOT RETRACT WITH GEAR HANDLE PLACED IN UP POSITION. FWD PANEL INDICATES NOSE GEAR GREEN LIGHT & RED UNSAFE LIGHT. AFT OVERHEAD LIGHT SHOWS NOSE GEAR GREEN LIGHT ONLY. PERFORMED PSEU BITE CHECK, NO FAULTS FOUND. PERFORMED NOSE GEAR RETRACTION CHECK, OPS CHECK NORMAL PER MM. AT LAS, R&R NLG LOCK ACTUATOR AS PRECAUTIONARY MEASURE.