As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 177 (ACFT DIVERSION) GREEN SYS HYD LEVEL LOW IN CRUISE. MONITORED DURING FLIGHT AND LEV CONTINUED TO DECREASE UNTIL REACHED AMBER LEVEL. SERVICED GREEN HYDRAULICS AND PRESSURIZED. FOUND LOOSE LINE AT NR 1 ENGINE T/R RIGHT LOWER LOCK ACTUATOR. SECURED LINE AND DEPLOYED T/R. OPS NORMAL, NO LEAKS.