As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR FLIGHT 4036 THE CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE ALONG WITH A THRUST REVERSER 1/2 DISAGREE. THE AIRCRAFT RETURNED TO EWR AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND SERVICED THE NOSE LANDING GEAR SHOCK ABSORBER. OPERTIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS RELEASED FOR SERVICE.