As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3096 - EWR - FLIGHT CREW REPORTED LG GEAR AIR/GROUND FAIL MESSAGE IN FLIGHT DURING GEAR EXTENSION, MSG GOES AWAY AFTER 2 SECONDS. EWR MX REMOVED AND REPLACED RT NOSE GEAR DOOR ACTUATOR AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.