As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF DUE TO AP2 CAUTION APPEARED IN CAD ALONG WITH AP WARNING. AP2 KICKED OFF; ATTEMPTED TO TURN ON AP2 AND IT FAILED AGAIN. AVIONICS TROUBLESHOT AND COULD NOT FIX ISSUE. T/F EVALUATION: AP #2 INOP. AFTER STARTUP, AP 2 ILLUMINATED ON CAD, AP 2 WOULD NOT COME ONLINE. AP 1 WOULD COME ON BUT WITH ASSOCIATED YAW ACTUATOR ANNUNCIATION. REMOVED AND REPLACED APM2; MOC SUCCESSFULLY COMPLETED IAW 22-10-00, 4-1/5-1.