As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, SELECTED LANDING GEAR DOWN AT 180KTS WITH FLAPS AT 20 DEGREES, GOT A GEAR DISAGREE UP MASTER WARNING MESSAGE WITH BOTH MAIN LANDING GEARS IN THE UP POSITION AND THE NOSE WHEEL DOWN. FOLLOWED QRH , RECEIVED DOWN AND 3 GREEN ON ALL THREE GEAR POSITIONS. EMERGENCY WAS DECLARED AND LANDED WITH NO OTHER MALFUNCTIONS.