As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN LANDING GEAR LIGHT ILLUMINATED DURING FLIGHT. COMPLIED WITH ABNORMAL PROCEDURES. RECYCLED GEAR, LIGHT REMAINED ON. SPEED DECREASED TO LESS THAN 300 KNOTS FOR REMAINDER OF FLIGHT. ON DESCENT LIGHT EXTINGUISHED. REPLACED LANDING GEAR PROXIMITY CONTROL BOX IAW DC9 MM 32-50-00. CYCLED GEAR SEVERAL TIMES, ALL INDICATIONS WERE NORMAL.