As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3359 LEVEL AT FL370, DOOR L AFT CABIN ECAM MESSAGE. 4L DOOR AIS SHOWN OPENED. CABIN V/S REMAINED 0 FT/MIN. CORRECTIVE ACTION: PERFORMED BITE TEST ON PSCU. TEST OK. CHECKED PROX SENSORS 23MJ AND 25MJ. FOUND IN GOOD CONDITION. CLEANED PLUGS. DOOR OPERATION OK. (9223066)