As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANTS REPORT THAT THE 3L DOOR SHOWS A LOW-PRESSURE MESSAGE ON THE CIDS CABIN STATUS DOOR/SLIDE INDICATOR SCREEN. MAINTENANCE SERVICED 3L DOOR ASSIST BOTTLE PER AMM 52-10-00. MESSAGE CLEARED ON CIDS PANEL. AIRCRAFT OK FOR CONTINUED SERVICE.