As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB FROM FL360 TO FL380, LT HYD QTY WENT FROM FULL TO ZERO WITHIN A SECOND. COMPLETED QRH CHECKLIST. ON ARRIVAL, FLEW APP & LOST PTU, NORMAL LANDING. R & R NR 1 EDP HYD & HOSE PN AE709566-1 IAW MM 29-11-05. OPERATIONS & LEAK CHECKED GOOD.