As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORT, HYD GREEN ENG 1 PUMP LO PSI WITH HYD GREEN RSVR LO LEVEL. FLIGHT CREW SHUTDOWN GREEN SYS BEFORE QTY EMPTIED IAW QRH. SERVICED GREEN HYD SYS, CHECKED FOR HYD LEAKS. PERFORMED FLIGHT CONTROL CHECK, NO LEAKS NOTED. NO LEAKS NOTED ON ACFT ON FUSELAGE OR WINGS. SUSPECT AIR IN SYS. RAN NR 1 ENG & OPERATIONS CHECKED FLIGHT CONTROL SYS. NO LEAKS NOTED GREEN HYD QTY HAD NO CHANGE.