As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK, COMPLETE HYDRAULIC GREEN LOSS OF FLUID IN FLIGHT. FOUND HYDRAULIC MOTOR ON FLAP CONTROL MODULE LEAKING. VERIFIED ENG DRIVEN PUMPS OPERATED LESS THAN 1 MINUTE PER AHM REPORT. SERVICED AND BLEED GREEN HYD SYS PER AMM 29-00-00/401.