As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON GROUND AT ALB, NOTED HEAVY ODOR OF BURNING ELECTRICAL EQUIPMENT. AIRED OUT COCKPIT, CLOSED UP AGAIN AND SMELL RETURNED WITHIN TWO MINUTES. FOUND SMELL COMING FROM THE AUTO PILOT CONTROLLER. DEFERRED THE AUTO PILOT SYSTEM. CLEARED DEFERRED ITEM, REPLACED AUTO PILOT CONTROLLER IAW DC9 AMM 22-10-02.