As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAXING TO DEPARTURE END OF RUNWAY, PILOT NOTICED LIGHT SMOKE AND AN ODOR IN THE COCKPIT. PILOT SECURED AIR CONDITIONER AND RETURNED TO HANGER. PLASTIC COVER OVER AIR CONDITIONER CURRENT LIMITER UNDER PILOTS SEAT WAS FOUND TO BE BURNED. UPON FURTHER INSPECTION CONNECTION FOR AIR CONDITIONER CURRENT LIMITER WAS SLIGHTLY LOOSE. LIMITER HAD BEEN REPLACED THE DAY BEFORE. REPLACED COVER AND ACFT WAS RETURNED TO SERVICE.