As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED - L4 DOOR DOES NOT SHOW ARMED ON CIDS PANEL, DID SHOW ARMED ON LOWER ECAM. FOUND DOOR ASSIST BOTTLE HAD LOW PRESSURE, DUE TO BAD FILLING VALVE. REPLACED FILLING VALVE AND O-RING PER AMM 52-10-00. SERVICED L4 DOOR ASSIST BOTTLE PER JOB CARD 26L80052001.