As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ARMING THE DOORS ON FLIGHT ATTENDANT'S SIDS PANEL, THE L4 DOOR DID NOT ARM AND DISPLAYED CHECK DOOR PRESSURE. ON FLIGHT DECK ECAM. SHOWED ALL DOORS CLOSED AND ARMED. MAINTENANCE SERVICED THE L4 DOOR DAMPER AND EMERGENCY CYLINDER IAW AMM 52-10-00-614-001-A AND PERFORMED SUCCESSFUL OPS CHECKED. AIRCRAFT WAS GROUNDED