As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF HYD SYS NR 3 ELEV LIGHT CAME ON SECOND OFFICERS PANEL IN CONJUNCTION WITH LOUD BANG AND CORRESPONDING LOSS OF SYS NR 3 HYD QTY (DOWN TO ONE GAL) APPROPRIATE EMERGENCY PROCEDURE CHECKLIST WERE RUN. REMOVED AND REPLACED LEFT MAIN LANDING GEAR RETRACT CYLINDER, AND FIELD WORK BY BF GOODRICH REPLACING LOWER EYE BUSHINGS AS PER MM 32-33-01, ALL SYS GROUND CHECKED NORMAL.