As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. CHECK DOOR PRESSURE AT 3L DOOR INDICATION ON CABIN INTERCOMMUNICATION DATA SYSTEM PANEL. REMOVED AND REPLACED DECODER/ENCODER UNIT, PER AMM 23-73-47. DECODER ENCODER UNIT OPERATIONS CHECKED GOOD, BUT DOOR 3L MESSAGE REMAINED. REMOVED AND REPLACED 3L DOOR DAMPER ACTUATOR, PER AMM 52-22-14. OPERATIONS CHECK GOOD. NO INDICATION ON CABIN INTERCOMMUNICATION DATA SYSTEM PANEL.