As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJU - FLT 0699 - AFTER TAKEOFF SJU, UNABLE TO RETRACT LANDING GEAR USING EITHER SYSTEM 1 OR SYSTEM 2. AIRCRAFT RETURNED TO SJU AND LANDED WITHOUT INCIDENT. REPLACED LT MLG PITCH DAMPER ASSEMBLY. SYSTEM GROUND CHECKED NORMAL OPERATION. (X)