As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOG PAGE 4524436 - FLT 660-PHX - EMERGENCY EQUIPMENT - O2 DOOR AT 12 LEFT FAILED TO DROP DURING PASSENGER O2 DROP FUNCTIONAL TEST. MAINTENANCE REMOVED AND REPLACED PASSENGER O2 BOX ASSEMBLY AT 12 LEFT PER AIRBUS MAINTENANCE MANUAL 35-21-41.