As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURIZATION AUTO FAIL LIGHT ILLUMINATES ON LANDING. ACFT GROUNDED. SELECTED MANUAL FOR 10 SECONDS AND BACK TO AUTO. AUTO FAIL LIGHT WENT OUT. NR 2 CONTROLLER FFR SHOWED OFV LRU FAIL FAULT. CURRENT BITE TEST OF SYSTEM. 1 & 2 PRESSURE CONTROLLERS TEST & RESET GOOD IAW FIM 21-31/T827.