As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - CREW REPORTED RIGHT HYDRAULIC SYSTEM FAILED IN FLIGHT. EMERGENCY DECLARED RETURNED SEA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND TEE FITTING IN TAIL COMPARTMENT LEAKING. REPLACED TEE FITTING. SYSTEM GROUND CHECKED NORMAL OPERATION.