As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(B18718) CREW INFO THROUGH ACARS "HYD-2 QTY LOW" MSG APPEARD, QTY CONTINUED DROPPING TO ZERO & "HYD PRESS ENG-2" MSG APPEARED, THEN QRH PROCEDURE COMPLETED. INITIAL INVESTIGATION FOUND NR 2 ENG EDP DRIVE SHAFT WAS SHEARED. RPLD NR2 ENG EDP. RPLD THE 2 FILTERS IN THE PRESSURE MODULE & THE CASE DRAIN FILTER. FLUSH THE EDP PRESSURE & CASE DRAIN LINE.