As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 2490 - EWR - CREW REPORTED THAT LANDING GEAR WILL NOT RETRACT AFTER TAKEOFF. CREW PROCEEDED WITH AIR RETURN AND LANDED UNEVENTFULLY. EWR MX REMOVED AND REPLACED LANDING GEAR CONTROL LEVER AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.