As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO PRESSIZATION FAILED DUE TO SWITCH REPLACED CABIN PRESSURE CONTROL MODULE IAW AMM 21-31-02-400-801 ADD EMP:U029666 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1950071 SN OFF 5515 PANEL, PRESS, C OFF 29-2131-9-0006 5515 ON 29-2131-9-0006 1738