As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) YELLOW HYD SYSTEM LOSS. PAN PAN DECLARED WITH ATC TO ALLOW FOR MORE SPACING DUE TO THE SLOW MOVEMENT OF FLAPS. RESOLUTION YELLOW HYD SERVICED WITH 8L, FOUND HYD LEAK ON 32 ENG PYLON ABOVE FAN CASE BEHIND PANEL 423AL. CBS AB3 AND AB6 PULLED FOR YELLOW ELEC PUMP. HYD LINE REPLACED IAW AMM 29-13-49-PB401.