As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LOSS OF GREEN HYDRAULIC SYSTEM ON DESCENT INTO PDX. CONDUCTED GRAVITY EXTENSION OF LANDING GEAR AND DECLARED AN EMERGENCY; PASSENGERS WERE NOT INSTRUCTED TO BRACE. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE HYDRAULIC PUMP IAW AIRBUS MAINTENANCE MANUAL 29-11-51-400 AND HYDRAULIC PRESSURE SWITCH FOR GREEN SYSTEM IAW AIRBUS MAINTENANCE MANUAL 29-11-17.