What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED WHEN ARMING THE DOOR INDICATION CHECK PRESSURE COME UP ON DOOR 4L. MAINTENANCE REPLACED THE 4L DOOR DAMPER AND EMERGENCY OPERATION CYLINDER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED WHEN ARMING THE DOOR INDICATION CHECK PRESSURE COME UP ON DOOR 4L. MAINTENANCE REPLACED THE 4L DOOR DAMPER AND EMERGENCY OPERATION CYLINDER.