As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF FROM KMCC, AIRCRAFT LOST HYDRAULIC PRESSURE. HYDRAULIC QUANTITY DROPPED TO AUX LEVEL. CREW RETURNED AIRCRAFT TO KMCC AND LANDED WITHOUT INCIDENT. AN INSPECTION IS ON GOING. AS SOON AS INFORMATION BECOMES AVAILABLE IT WILL BE PROVIDED. MAINTENANCE REMOVED AND REPLACED NR 2 PRESS LINE TO PUMP, SERVICED HYDRAULIC SYSTEM BLEED AIRCRAFT FLIGHT CONTROLS DURING ENGINE RUN. THE OPERATIONAL CHECK WAS GOOD PER ALL APPLICABLE MANUALS.