What was found
SYS-A HYD QTY WENT TO 0 AND BOTH LOW PRESS LIGHTS CAME ON WITH EXTENSION OF FLAPS ON TAXI OUT. FOUND NUMBER 4 SLAT ACTUATOR LEAKING. REPLACED ACTUATOR.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SYS-A HYD QTY WENT TO 0 AND BOTH LOW PRESS LIGHTS CAME ON WITH EXTENSION OF FLAPS ON TAXI OUT. FOUND NUMBER 4 SLAT ACTUATOR LEAKING. REPLACED ACTUATOR.