As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SCL - CREW REPORTED LEFT HYDRAULIC SYSTEM QUANTITY LOSS. EMERGENCY DECLARED RETURNED SCL LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND VERTICAL STABILIZER HYDRAULIC MAINFOLD RETURN 3 O-RING BROKEN. REPLACED O-RING AND LEAK TESTED. SYSETM GROUND CHECK NORMAL OPERATION.