As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, B-SYSTEM HYDRAULIC QTY WENT TO 0. FOLLOWED ABNORMAL PROCEDURES LANDED SEA. FOUND LINE FROM NR 2 CASE DRAIN AT TEMP SWITCH CRACKED. INSTALLED TEMPORARY LINE FOR RETURN TO SERVICE THEN SCHEDULED INSTALLATION OF REPLACEMENT LINE.