As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED CLIMBING THROUGH 17,000 FT A POP AND HISSING AROUND SERVICE DOOR. CREW RETURNED TO AIRPORT AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, REMOVED, REPLACED, AND OPERATIONAL CHECKED THE SERVICE DOOR SEAL USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT WAS RELEASED FOR SERVICE.