As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD WHISTLING COMING FROM MCD ABOVE FL 180 UNTIL DESCENDED BELOW 10000 FT. PERFORMED PRESSURIZATION CHECK. FOUND MULTIPLE LEAKS & MARKED W/TAPE. RESEALED LEAKING AREA. PERFORMED MANUAL PRESSURIZATION PROCEDURE. NO FURTHER LEAKS FROM MCD NOTES AT THIS TIME.