As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT RIGHT MAIN GEAR WAS SLOWER THAN NORMAL TO EXTEND - NOSE GEAR AND LEFT GEAR WERE DOWN AND LOCKED GREEN. AFTER A SHORT TIME, RIGHT MAIN EXTENDED AND LOCKED DOWN WITH THE GREEN LIGHT INDICATION FOLLOWED BY ECAM MESSAGE 'LGCIU 2 FAULT'. CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND INSTALLED LANDING GEAR SELECTOR VALVE IAW AIRBUS MAINTENANCE MANUAL 32-31-12-0401.