As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DOOR 4L NOT SHOWING ARMED ON FLIGHT ATTENDANT PANEL. ECAM INDICATES ARMED. MAINTENANCE FOUND THE 4L DOOR ASSIST BOTTLE PRESSURE LOW AND REPLACED THE BOTTLE CHARGING VALVE PER AARD 52-10-00-1 AND AMM 52-10-00. A SATISFACTORY LEAK CHECK WAS ACCOMPLISHED.