As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR- CREW REPORTED AFTER TAKEOFF LG/GEAR DISAGREEMENT (INDICATION), RT MAIN GEAR. AIRCRAFT AIR RETURNED TO EWR. MAINTENANCE REMOVED AND REPLACED RT MAIN LANDING GEAR UPLOCK BOX IAW EMB145 MM 32-33-10 AND PROXIMITY SWITCH IAW EMB145 MM 32-61-01. AIRCRAFT RETURNED TO SERVICE.