As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT WOULD NOT PRESSURIZE SHORTLY AFTER DEPARTURE. F/A REPORTED WIND NOISE COMING FROM AFT CARGO AREA. DIVERTED AND ACCOMPLISHED UNEVENTFUL LANDING. INTERROGATED CDS FOUND FAULT CODE "CPC/ OF VALVE DATA FAIL". CLEARED FAULT, CHECKED WITH NO DEFECTS. R & R CABIN PRESSURE CONTROLLER IAW AMM TASKS 21-31-06-000 & 400-801. OPS CHECKED GOOD.