As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUSE @ FL 340 PRESN AUTO FAIL CAUTION MSG APPEARED RAN CHECK LIT BUT PRESSURIZATION NEVER STABILIZED PER LOSSS OF PRESSERIZATION INDICATION TABLE CAB RATE RANGED FROM -900 TO 2800 FPM AT 10000 FT MSL INDICATION ON MFD CAB ALT ON EICAS SHOWED AMBER DASHES WITH CAB 7.8 PSI ON DESENT HAD TO LEVEL OFF @ FL2500 CAB ALT AND CAP AP NEVER REACH LOS OF PRESSERATION INDICATION TABLE NUMBERS. REMOVED AND REPLACED THE DIGITAL CONTROLLER.