As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN REPORTED, LOST ALL NR 3 HYD QTY IN FLIGHT. GEAR WAS EXTENDED MANUALLY AND DECLARED EMERGENCY. MX FOUND HYD FLUID ON BELLY AROUND MAIN GEAR AND WAS TAKEN TO HANGAR TO OPEN UP AND INSPECT FOR CAUSE OF LEAK. REPLACED 3A/3B PUMP AND REPLACED THE ACOUSTIC HYD LINE.