As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
35 MINS INTO FLIGHT FO'S WINDOW HAD LOUD SQUEAL SOUND. UNABLE TO COMMUNICATE IN COCKPIT, IT IS TOO LOUD. T/S AS PER FIM 56-12-05, FOUND FO`S SLIDING WINDOW INNER SEAL CUT AT THE UPPER AFT CORNER. F/O SLIDING WINDOW RUBBER SEAL COMPLETELY CURED. PERFORMED FUSELAGE PRESSURE DECAY TEST AS PER MM 21-00-00-5. TEST PASSED. NO LEAK NOTICED. A/C OK FOR SERVICE.