As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED RUMBLING NOISE COMING FROM SERVICE DOOR IN FLIGHT. NO CHANGES IN AIRCRAFT PRESSURIZATION OBSERVED. CREW DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED, REMOVED AND REPLACED SERVICE DOOR SEAL AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.