As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT DURING CRUISE FLIGHT, THEY RECEIVED A LG AIR GND FAIL MESSAGE. THE CREW REPORTED THAT THEY RECEIVED ASSOCIATED ENG 1 & 2 THRUST REVERSER DISAGREE MESSAGES. DIVERTED & LANDED WITHOUT INCIDENT. REPLACED THE NLG WEIGHT ON WHEELS PROXIMITY SWITCH. OPERATIONS CHECKED WERE GOOD WITH NO FURTHER DEFECTS NOTED.