As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FL400 "DOOR RT AFT CABIN" ECAM MESSAGE. DOOR SYSTEM INDICATES RT AFT DOOR OPEN. COMPLIED W/QRH NO PRESSURIZATION PROBLEMS. CORRECTIVE ACTION: CYCLED RT AFT DOOR. PERFORMED BITE TEST OF PSCU, PER A330 AMM 52-71. OPERATIONS CHECKS GOOD. NO FAULTS NOTED.