As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT LOST B-SYSTEM HYDRAULIC QUANTITY WHILE IN FLIGHT. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND LEAKAGE IN B-SYSTEM HYDRAULIC RETURN LINE AT CASE DRAIN TEE FITTING. A FLEX LINE WAS INSTALLED AND A DIP WAS ISSUED TO REPLACE THE FLEX LINE WITH A PERMANENT LINE. THE HYDRAULIC SYSTEM WAS SERVICED. LEAK AND OPERATIONAL CHECKS WERE GOOD.