What was found
RED UNLOCK LIGHT DID NOT EXTINGUISH AFTER TAKEOFF. NORMAL HYD PRESSURES. PERFORMED CHECKLIST & GEAR EXTENDED NORMAL. PERFORMED MLG SWINGS. VERIFIED DISCREPANCY, MLG MOVED TO UPLOCK POSITION, BUT BOTH MLG DOORS DID NOT, NLG & DOORS MOVED TO UP POSITION BUT DID NOT LOCK, TURNED HYD CART OFF, NLG FELL BACK DOWN. VISUALLY INSPECTED MLG WIRE HARNESSES & PROXIMITY SENSORS, NO DEFECTS. INSPECTED NLG, MANUALLY SET NLG UPLOCK CLOSED & ON INCREASING PRESSURE FROM HYD CART, NLG UPLOCK RESET OPEN. DISCONNECTED NLG PROXIMITY SWITCH CONNECTORS & CHECKED FOR DEFECTS, NONE NOTED. RECONNECTED NLG CONNECTORS, GEAR SWINGS SUCCESSFULLY. DISCONNECTED & CLEANED MLG CONNECTORS. PERFORMED SWINGS SUCCESSFULLY. NORMAL OPS.