As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: CHECK PRESSURE ON R1 DOOR INDCATION ON CABIN INTERCOMMUNICATION DATA SYSTEM PANEL. REPLACED DISPLAY DECODER ENCODER UNIT B 300RH1 (DEU) PER AMM 23-73-47-000-001-A AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.