As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INBOUND AFTER SELECTING LDG GEAR LEVER TO DOWN POSITION AT 3000' AND 180 KTS RECIEVED GEAR DISAGREE WARNING. NOSE GEAR INDICATED DOWN, 2 MAINS INDICATED UP. FOLLOWED QRH, RECYCLED 6 TIMES WITH NO HELP. PULLED LANDING GEAR MANUAL RELEASE, MAINS EXTENDED AND SHOWED DOWN ON EICAS. NORMAL LANDING, HYD PRESS NORMAL THROUGHOUT. MAIN GEAR ICON ON EICAS NEVER CHANGED FROM "UP" UNTIL MANUAL RELEASE. EMERGENCY DECLARED BY ATC AND TRUCKS ON STAND BY AS A PRECAUTION.