As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD - DECLARED EMERGENCY INTO LAX DUE TO LOSS OF THE GREEN HYDRAULIC SYSTEM PRESSURE AND PARTIAL FLUID LOSS BEFORE PUMP WAS ISOLATED AND SHUT OFF. MANUAL GEAR EXTENSION PERFORMED. REPLACED DAMAGED DRAIN PLUG O-RING AT THE #1 EDP. (LP# 8926528; AIRCRAFT WAS GROUNDED)