As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PER CREW VERBAL, AFTER TAKE OFF AND GEAR RET. WE HAD MASTER CAUTION WITH GEAR DISAGREE AND GEAR DOORS EICAS. AT SAME TIME AMBER DOORS AND AMBER GEAR ANOUNCIATOR LIGHTS ILLUMINATED. RAN QRH CHECKLIST AND SUBSEQUENTLY LOWERED GEAR WICH PRODUCED NORMAL INDICATION GEAR DOWN. CAPT CALER, U168150.