As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YELLOW HYD SYSTEM FAILED IN FLT. HYD QTY LOW. FOUND TWO PLUGS ON ACTUATOR BODY LEAKING AND NOT SAFETIED. TORQUED BOTH PLUGS REF. AMM 20-21-12-00 AND SAFETIED. SERVICED YELLOW SYSTEM REF. AMM 12-12-29-00. PRESSURIZED ALL THREE SYSTEMS WITH ELECTRIC PUMPS AND CYCLED RUDDER. OPS AND LEAK CHECKED GOOD.