As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED AN EICAS MESSAGE "HYD 1 LO QTY" INFLIGHT, HYD PAGE INDICATES SYS 1 QTY IN AMBER. DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. PERFORMED A WALK AROUND FOR LEAKS NO DEFECTS NOTED. SERVICED BOTH HYD SYSTEMS IAW AMM 12-13-01. ALSO PERFORMED WALK AROUND FOR LEAKS NO DEFECTS NOTED. SERVICED HYD SYS IAW AMM 12-13-01. THE ACFT WAS RETURNED TO SERVICE.