As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERFORMED A GO AROUND AND AN ALTERNATE GEAR EXTEND PER THE QRH DUE TO A MLG DOOR OPEN LIGHT. FLIGHT LANDED UNEVENTFULLY. MAINTENANCE COMPLIED WITH THE NO-GO-ODI TASKS AND FOUND RIGHT MLG DOOR PROXIMITY SWITCH OUT OF LIMITS. THE SWITCH AND GEAR DOOR OPEN LIGHT ASSEMBLY WAS REPLACED AND THE OPERATIONAL CHECKS WERE GOOD.SDR REPORTED DUE TO EMERGENCY LANDING DECLARED. (LP5665852)