As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 400 FEET AGL AT TAKEOFF YD FAILED AND RUD SYS 1/2 INOP CAUTION MSG PRESENTED. RAN QRH WHEN RUD SYS 2 DESELECTED RUD SYS 1 CAME BACK ON LINE. YD RE-ENGAGE AND IT STAYED ONLINE. T/S IN REF TO FIM 27-22-00-810-804-A FOUND RUD SYS 2 PRESS SW FAIL. R&R RUD SYSTEM 2 PRESSURE SWITCH IN REF TO AMM 27-23-04. OP CK AND LK CK GOOD OK FOR SERVICE.