As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MESSAGE FLIGHT CONTROL SYS WITH FLIGHT CONTROL MODE CAUTION MESSAGE. MAINT MESSAGE 27-15101 LATCHED IN MAT. CORRELATED STATUS MESSAGES ARE (SAARU.AUTO SPEED BRAKE, THRUST ASYM COMP AND NO AUTOLAND). REPLACED CENTER PSA PER MM, NO HELP. RE-INSTALLED OLD UNIT. ACCOMPLISHED FIM 23-91 TASK 802 UP TO STEP C8(E). NO FAULTS FOUND. NEEDS MORE TROUBLESHOOTING. CONTINUED TROUBLESHOOTING SYSTEM REF FIM 23-91 TASK 802.