What was found
GOT AN OVER EXCITED ANNUNCIATOR LIGHT ON NR 1 SYSTEM. BUS BREAKER DID NOT TRIP. RESET BROUGHT GENERATORS BACK ON LINE FOR 5 MINUTES. AT TAKEOFF ANNUNCIATOR LIGHT CAME ON AGAIN. SYSTEM NR 1 BUS TIE TRIPPED SYSTEM 1 FOLLOWED BY LEFT PACK TRIP. TANK NR 1 AFT BOOST PUMP BREAKER TRIPPED AND TANK NR 2 FORWARD RIGHT BOOST PUMP BREAKER TRIPPED. *S/D* REPLACED NR 1 VOLTAGE REGULATOR, NO FURTHER PROBLEMS REPORTED.