What was found
DURING FLIGHT, WHEN MOVING GEAR HANDLE TO OFF POSITION, NOSE WHEEL DROPPED FROM WHEELWELL. HAD RED & GREEN LIGHT GEAR INDICATION. ACFT RETURNED TO DEPARTURE. MAINTENANCE PERFORMED PSEU BITE, NO FAULTS NOTED. GEAR VISUAL INSPECTION, NO DAMAGE OR LEAKS NOTED. FOUND LOCK VALVE MANIFOLD AND RETRACT ACTUATOR BYPASSING. REPLACED BOTH. OPS TESTS OK, ACFT RETURNED TO SERVICE.