As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED, ACFT WAS GNDED. FLIGHT CREW REPORTED A HYD GREEN SYS LOW LEVEL WARNING, DECLARED AN EMER & RETURNED WHERE THE ACFT LANDED SAFELY & WAS TOWED TO THE TERMINAL. FOUND A LEAKING HYD LINE IN THE RT AFT SPAR AREA PYLON. THE LINE HAD A PIN HOLE. REPAIRED THE HYD LINE & ACCOMPLISHED A SATISFACTORY LEAK CHECK.