As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT ROTATION A-SYS HYD FLUID WENT TO ZERO, RAN QRH, KEPT GEAR DOWN AND FLAPS 15, HAD A-SYS FLUID SHUT OFF SWITCHED OFF 23 MIN. DECLARED EMERGENCY. R & R INBOARD FLAP FLOW LIMITING VALVE PER MM. R & R NR 1 & 2 ENGINE PUMP CASE DRAIN FILTERS PER MM. R & R BOTH SYS A-PRESS FILTERS PER MM. SERVICED HYD SYS TO FULL AND LEAK CHECKED ALL FILTERS AND VALVE.