As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD SCREECH COMING FROM LEFT SIDE OF PASSENGER DOOR DURING CLIMB. PRESSURIZATION ACTS NORMAL AND SCREECH DECREASES IN VOLUME AT CRUISE. REMOVED UPPER ACOUSTIC SEAL PN 9522-11, SN UNKNOWN, INSTALLED NEW UPPER ACOUSTIC SEAL PN 9522-11 SN 0932. IN REFERENCE TO CESSNA 560XL MM 52-10-04