As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AT FL220 APPROXIMATELY 20 MINUTES FROM DESTINATION THE AIRCRAFT EXPERIENCED A LOSS OF PRESSURIZATION. THE CREW DESCENDED TO 10,000 AND THE AIRCRAFT CONTINUED AND LANDED WITHOUT FURTHER PROBLEM. INVESTIGATION DETERMINED THE SOURCE OF THE PRESSURIZATION TO BE A CRACK MIDWAY IN THE RT EDGE OF THE UPPER CARGO. (TC NR 20070514001)