As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE, RECEIVED PAX DOOR STOW CAUTION MESSAGE. COMPLIED WITH QRH, GREEN WITNESS MARKS ALIGN AND PRESSURIZATION NORMAL. MESSAGE REMAINED INTERMITTENT FOR REMAINDER OF FLIGHT. ***AIRCRAFT REMOVED FROM SERVICE*** PERFORMED OPERATIONAL CHECK OF PAX DOOR NO DEFECTS NOTED IAW AMM 52-41-00. OPS CK GOOD