As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJU STT-PHL FLT NR 1012 - AFTER TAKEOFF, THE GEAR WOULD NOT RETRACT AND THE GEAR LEVER WOULD NOT RAISE PAST THE OFF POSITION. CREW HAD THREE GREEN LIGHTS AND ELECTED TO LEAVE THE GEAR DOWN AND DIVERT TO SJU. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT TRUCK TILT ACTUATOR. OPS CHECKED OK.