As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 24000 FT, INBOUND TO DESTINATION, AUTOPILOT WARNING HORN SOUNDED CONTINUOUSLY AND ALL AUTOPILOT WARNING LIGHTS WERE ON AND AUTOPILOT ENGAGE LIGHTS WERE ON WITH AUTOPILOT OFF. DETECTED A BURNED WIRE ODOR THAT PROGRESSIVELY INCREASED, DECIDED TO LAND. PULLED AUTO FLIGHT CONTROL CIRCUIT BREAKER AND ALL OF THE AUTOPILOTS WENT OUT.