As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROXIMATELY 10 MINUTES INTO THE FLIGHT, THE AIRCRAFT EXPERIENCED A NO. 2 HYDRAULIC PUMP LOW CAS AND THE AIRCRAFT RETURNED TO BASE. UPON INSPECTION, WE DISCOVERED THAT THE FORWARD SERVO SEAL WAS LEAKING EXTENSIVELY, WHICH LIKELY CAUSED THE NO. 2 HYDRAULIC SYSTEM TO RUN DRY. THE SEAL IS LEAKING STATIC AS JUST AS FAST AS THE NO 2 HYDRAULIC SYSTEM IS SERVICED.