As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2767 - EWR - FLIGHT CREW DIVERTED TO EWR DUE TO LANDING GEAR NOT RETRACTING (ORIGINAL FLIGHT WAS ALB TO CLE). EWR MX VERIFIED GAP IN ALL WOW SWITCHES, SERVICED NOSE LANDING GEAR STRUT AND PERFORMED LANDING GEAR OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.