As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH TO 16L SEA AT APPROX 4000 FT AND 12 MILES AUTOPILOT "A" ENGAGED "APP" SELECTED. UPON CAPTURING G/S A/P PITCHED DOWN THEN UP FOLLOWED BY A/P DISCONNECT. DFCS LOGGED MSG 22 11368 G/S ANOMALY DETECTED. SYS TESTS GOOD REF FIM TASK 22 11 810 801. A/C REMAINS CAT IIIA A/L AND HGS QUALIFIED. REF MM 22 00 01 730 801. NO HISTORY 30 DAYS. SEAMC NOTIFIED.