As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEN - FLIGHT 2187, THE CREW REPORTED A LANDING GEAR AIR GROUND FAIL AFTER TAKEOFF. THE AIRCRAFT DIVERTED TO DEN WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE WEIGHT ON WHEELS PROX SWITCH ON THE NLG, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.