As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH TO YUM, LEFT MAIN LANDING GEAR A-SYSTEM RED LIGHT WOULD NOT EXTINGUISH. A-SYSTEM GREEN LIGHT WOULD NOT ILLUMINATE. INSTALLED GEAR PINS AND SECURED. INSPECTED ALL PROXIMITY SENSORS, FOUND RIGHT MLG DOWNLOCK PROXIMITY SENSORS OUT OF ADJUSTMENT. ADJUSTED IAW MM 32-61-01. CYCLED GEAR SEVERAL TIMES. OPS CHECK GOOD.