What was found
SMOKE IN THE COCKPIT. ODOR OF OVERHEATING ELECTRICAL COMPONENTS IN COCKPIT - ISOLATED TO MAIN BATTERY. ACCOMPLISHED QRH PROCEDURE ON PAGE EAC 1077-5 AND DIVERTED TO YPAD. REPLACED MAIN BATTERY PER AMM 24-31-01, PAGE 501, REPLACED MAIN BATTERY CHARGER PER AMM 24-31-02 PG 401, REPLACED BATTERY CHARGER RELAY PER AMM 24-31-04 PG 4, REPLACED MAIN BATTERY BUS RELAY PER AMM 24-31-03 PG 401, PERFORMED INSPECTION OF WIRING TO BATTERY AND CHARGER PER AMM 24-30-00 PG 501 AND WD 24-31-11 PG 4.1, CONDUCTED GROUND WIRING CHECKS PER WDM24-31-11 PG 4.1 AND PERFORMED CHAPTER 5 SMOKE IN COCKPIT INSPECTION.