As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LEAVING THE RAMP, NOTICED A PUDDLE OF FLUID. CHECKED HYDRAULIC SYNOPTIC PAGE AND IT SHOWED A LOSS OF ALL HYDRAULIC SYSTEM NR 3 FLUID. REMOVED AND REPLACED NR 3 HYDRAULIC LEFT SPOILERON O/B PCU ACTUATOR WITH A SERVICEABLE UNIT IAW 27-62-01. OPS CHECK GOOD. NO LEAKS NOTED AT THIS TIME.