As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MESSAGE DURING GO AROUND ON APPROACH, INITIATED AFTER MICROBURSTS ON THE FIELD. GEAR WAS NEVER SELECTED UP AND NOTICED THIS AT 230KTS, AFTER WHICH GEAR HANDLE WAS SELECTED UP, CAUSING THE MESSAGE. GEAR RETRACTED AS AIRPLANE SLOWED THROUGH APPROXIMATELY 220 KTS. (FLT#4705) CLOSED PERFORMED SEVERAL OPS CHECKS OF THE LANDING GEAR EXTENSION AND RETRACTION IAW AMM. COULD NOT DUPLICATE. OPS CHECK GOOD AT THIS TIME.