As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURIZATION AUTOFAIL. ACFT GROUNDED. FOUND TWO FAULTS ON NR 2 PRESSURIZATION CONTROLLER. CONTROL PANEL FAULT AND SYSTEM WIRING. SUSPECTED FAULT INDUCED BY POWER TRANSFER. CYCLED NR 2 CONTROLLER POWER, NR 2 AUTO PRESSURIZATION. OPS NORMAL REF FIM 21-31, TASK 801. PRESSURIZATION CONTROLLER BITE.