As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - CREW REPORTED LOSS OF LEFT HYDRAULIC SYSTEM. EMERGENCY DECLARED FLIGHT RETURNED MIA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED NUMBER 1 SPOILER ACTUATOR DRAIN PLUG THAT WAS LEAKING. SYSTEM GROUND CHECK NORMAL OPERATION.