As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: CABIN INTERCOMMUNICATION DATA SYSTEM CAUTION LIGHT ON FLIGHT ATTENDANT PANEL. PERFORMED CABIN INTERCOMMUNICATION DATA SYSTEM BUILT IN TEST EQUIPMENT TEST PER AMM 23-73-00-740-005-A, FOUND L2 BOTTLE PRESSURE LOW. SERVICE L2 DOOR DAMPER PER AMM 52-22-00. FAULT CLEARED.