What was found
(CAN) ALTERNATOR CB POPPED IN FLIGHT WITH MINOR SMELL OF SMOKE. AC RETURNED TO BASE WITHOUT FURTHER INCIDENT. MAINT FOUND THE ALTERNATOR PWR WIRE HAD CHAFED THROUGH THE OIL COOLER HSG AND GROUNDING CONTACT WAS MADE THROUGH CARBON FIBER LOWER COWLING AND HARDWARE ATTACH POINTS SEVERING THE GROUND CABLE FROM THE ALTERNATOR. THIS WAS THE THIRD INCIDENT (FOR FLEET) INVOLVING THE ALTERNATOR WIRES MAKING CONTACT WITH THE OIL COOLER SHROUD. MFG ADDRESSED THE PROBLEM BY ISSUING SB 1121-093, WHERE THE ALTERNATOR WIRES WERE SHORTENED AND SECURED AWAY FROM THE OIL COOLER SHROUD. (TC NR 20080114004)