As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AF FL 3890- SMOOTH AIR- AUTOPILOT B DISCONNECTED-DID IT NOT NOTICE OTHER INDICATION SUCH AS FMC PROBLEMS (REF PAGE 12078620)-RT IRS WAS 1.6 NM FROM AIRCRAFT ON POS PAGE-AUTOPILOT DISENGAGED AGAIN ON ILS APPROACH- 16R SEA. GROUNDED - YES. NO CURRENT FAULTS ON DFCS BITE. PAST FLIGHT LEG SHOWS MAINTENANCE MESSAGE 22-11128. B737-800 FIM TASK 22-11 TASK 899 (INBOUND CONDITION RELATED TO AUTOLAND) DONE: NO FAULTS NOTED. LAND VERIFY SUCCESSFUL. SEAMC DAVE NOTIFIED.