As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO FAIL AND ALTN LIGHTS ON PRESSURIZATION PANEL. VERIFIED AUTO FAIL AND ALTN LIGHTS ON. LIGHTS EXTINGUISHED BY SELECTING MANUAL AND RETURNING TO AUTO. GROUND VERIFICATION NORMAL BOTH PRESSURE CONTROLLERS OK FOR SERVICE REF MM 21 31 0.