As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - FLT 1165 - DURING APPROACH WHEN EXTENDING THE LANDING GEAR, THE GEAR DID NOT EXTEND. DID GO-AROUND AND CYCLED GEAR WITH SAME RESULT. ACCOMPLISHED ALTERNATE GEAR EXTENSION, DID FLYBY TO CONFIRM GEAR EXTENSION, AND LANDED MIA WITHOUT INCIDENT. REPLACED MAIN GEAR SELECTOR VALVE, ACCOMPLISHED GEAR SWING, AND REPLACED RT MLG FORWARD DRAG BRAKE. SYSTEM GROUND CHECKED NORMAL OPERATION. (X)