As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3570 THE CREW REPORTED AN ELECTRICAL ODOR FROM THE COCKPIT. THE AIRCRAFT WAS REMOVED FROM SERVICE. VERIFIED STRONG ELECTRICAL BURNT SMELL FROM THE FLIGHT GUIDANCE CONTROLLER. REMOVED AND REPLACED THE FLIGHT GUIDANCE CONTROLLER IAW AMM II CH 22-11-01. THE OPERATIONAL CHECK WAS GOOD IAW AMM II CH 22-11-00. THE AIRCRAFT WAS RETURNED TO SERVICE.