As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LANDING GEAR EXTENSION, LT MAIN GEAR GREEN LIGHT DID NOT COME ON WITH RED LIGHT ON PROCEDURE ACCOMPLISHED. PLEASE CHECK FOR INDICATION IAW AMM 32-60-05 PAGE 201 TO 205 AND 32-30-00 PAGE 1. LT MAIN LANDING GEAR DOWN PIN LOCK PROXIMITY SENSOR SWITCH WAS REPLACED AND EXTENSION RETRACTION TEST WAS ACCOMPLISHED SATISFACTORY. PROX SW PN 8-0337-03.