What was found
(CAN) DURING POST-FLIGHT INSPECTION, EVIDENCE OF FIRE DAMAGE WAS NOTED ON THE COMPRESSOR CASING WHICH WAS ATTRIBUTED TO A CRACKED FLARE ON THE FUEL FITTING LINE AT THE BOTTOM OF THE B-NUT. THE SOURCE OF IGNITION IS THOUGHT TO BE EITHER TO STARTER/GENERATOR OR THE HIGH ENERGY IGNITION WIRING. THE SUBJECT FUEL SUPPLY LINE IN USED FOR INITIAL START PURPOSES ONLY AND THEN PURGED WITH COMPRESSOR P2 BLEED AIR.