As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) MAINTENANCE DISCOVERED #1 HYD QTY AT 35% AND HYD FLUID UNDER CTR FUSELAGE. WHEN FLAPS OPERATED, FLUID STREAMED FROM THE CTR FUSELAGE DRAIN. THE #1 HYD SYSTEM BALANCE RELIEF VALVE WAS REPLACED, THE SYSTEM TESTED SERVICEABLE AND THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE. (TC# 20190625002)