As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 3876 - DURING FLIGHT IN BPT, THE CREW REPORTED THE LEFT MAIN LANDING GEAR SYSTEM NR 2 UNLOCK LIGHT ILLUMINATED IN-FLIGHT. THE AIRCRAFT WAS RELEASED TO SERVICE UNDER MEL. MAINTENANCE AT IAH SUBSEQUENTLY REMOVED AND REPLACED THE LEFT MAIN LANDING GEAR SYSTEM 2 PROXIMITY SWITCH AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (X)