As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AMBER "GEAR DOOR" AND "GEAR DISAGREE" EICAS MSGS DISPLAYED AFTER TAKEOFF. EICAS SHOWED BOTH MAIN UP & NOSE GEAR DOWN. GEAR LOWERED MANUALLY. RETUNED TO FIELD AND LANDED OVERWIGHT WITHOUT INCIDENT. MAINTENANCE REPLACED THE NOSE LANDING GEAR CONTROL VALVE.