As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: CABIN INTERCOMMUNICATION DATA SYSTEM CAUTION LIGHT ON FLIGHT ATTENDANT PANEL "DOOR PRESSURE LOW EXIT L". PER TSM 52-22-00-614-002A, SERVICED L3 DOOR CYLINDER ASSY IAW AMM 52-22-00. NO LEAKAGE OR SUBSEQUENT PRESSURE DECREASE NOTED. CABIN INTERCOMMUNICATION DATA SYSTEM BITE TEST SATISFACTORY, FLIGHT ATTENDANT PANEL MESSAGE EXTINGUISHED.