What was found
AIR TURNBACK, AFTER DEPARTURE RECEIVED GEAR DISAGREE AND GEAR DOORS EICAS MESSAGE. BURNED FUEL DOWN TO 46,000 LBS. LANDED OVERWEIGHT AT 220000 LBS. FOUND DOWNLOCK PIN INSTALLED IN NOSE GEAR. REMOVED DOWNLOCK PIN, PERFORMED OVERWEIGHT INSPECTION PER CARD I8M51601 WITH NO DISCREPANCIES FOUND.