What was found
AFTER T/O HAD LOUD RUMBLE AND VIBRATION FROM NOSE WHELL WELL AREA, RECYCLED GEAR, PERFORMED UPLATCH CHECK, NO HELP, NOISE INCREASED WITH AIRSPEED, TO MAX OF 225 KT. ON TAXI IN MECHANIC REPORTED LEFT NOSE GEAR DOOR FULL OPEN. FOUND LT NOSE GEAR DOOR OPENED. INSPECTED DOOR ACTUATORS AND STRUCTURE, NO DAMAGE FOUND AND OPERATION CHECK OF DOORS NORMAL AS PER DC-8 MM 32-20-0.