As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RAMP PEOPLE ADVISED THAT POWER ON ACFT FLUCTUATED WHILE CLEANING ACFT AND THERE WAS BURNING SMELL. CONTRACT MX CONFIRMS SMELL IS FROM LT AUTOPILOT DISENGAGE LT AND AUTOPILOT DISENGAGE LT CIRCUIT BREAKER POPPED. FOUND RESISTOR ON AUTO PILOT DISENGAGE BOARD BLOWN, REMOVED AND REPLACE AUTO PILOT DISENGAGE PANEL IAW 22-10-01 MM.