As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED THAT AT FL430, CABIN DOOR SEAL AMBER EICAS MESSAGE. THE CREW FOLLOWED THE QRH AND DESCENDED TO FL400. MESSAGE DID NOT EXTINGUISH TILL 4000' AGL PRIOR TO LANDING. A SLOW SQUEAL WAS HEARD DESCENDING FROM FL430 TO FL400. THE MAINTENANCE VENDOR REMOVED AND REPLACED THE INFLATABLE PRIMARY PRESSURE SEAL. OPS AND LEAK CHECKS WERE NORMAL ON THE GROUND. AIRCRAFT WAS RETURNED TO SERVICE.