As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AT INSPECTION IT WAS NOTICED THAT THERE WAS SOME HYD FLUID LEAKING FROM THE FLAP ACTUATOR VALVE WHERE THE FITTING ATTACH. WE CLEAN IT UP AND SELECTED FLAPS UP AND DOWN AND NOTICED A FITTING O-RING LEAKING. WE REPLACED ALL FITTING O-RINGS AND TESTED IT AGAIN.