As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO FAIL LIGHT ON, WENT TO ALT ON PRESSURE CONTROLLER. ACFT GROUNDED. RESET PRESSURE CONTROLLER. LIGHTS EXTINGUISHED, ACCOMPLISHED GROUND VERIFICATION OF PRESSURE CONTROL SYS BY ACCOMPLISHING BITE TEST OF NR 1 & NR 2 PRESSURE CONTROLLERS - SYS OPS NORMAL, REF AMM 21-31-00-700-802.