As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED CABIN PRESSURE PROBLEMS AND DECIDED TO DIVERT, THEY REPLACED THE 10TH-STAGE HIGH PRESSURE SHUT OFF VALVE (HPSOV) P/N REF: GG670-80001 AND THE PRESSURE-REGULATING SHUT OFF VALVE (PRSOV) P/N REF: GG670-80002, (TC# 20190725005)