As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO FAIL LIGHT ILLUMINATED AFTER 80 KNOTS ON TAKEOFF. COMPLETED QRH AND SYS OPERATED NORMALLY IN ALTERNATIVE. ACFT GROUNDED. NR 2 CABIN PRESSURE CONTROLLER HAD FAULT CODE 57 LOGGED. ACCOMPLISHED SYSTEM TEST & CLEAR TEST. OPS NORMAL. FAULT WENT AWAY. ALL TEST GOOD. NO HISTORY LAST 30 DAYS. REF MM 21-31-00 & FIM TASK 21-31- TASK 824.