What was found
(CAN) ON TAKEOFF, MASTER CAUTION & LT AND RT STALL WARNING CAUTION ILLUMINATED AT SAME TIME AS LT AC BUS, RT AC BUS, LT RU, RT RU. THERE WAS NO VOLTS OR LOADS ON VARIABLE AC GAUGES, NO TRU CIRCUIT BREAKERS POPPED. CREW HAD NO AC POWER, BUT NO AC BUS CAUTION LIGHTS. CREW RESET AC GENERATORS, AND RESTORED ALL SYSTEMS. MAINT DEFRERRED NR 2 STALL SYSTEM. THE NEXT DAY JUNE 12TH, MAINT REPLACED BOTH AC GENS. NR 1 AC GEN WOULD NOT COME ON LINE. AIRCRAFT DOWNED FOR FUTHER TROUBLESHOOTING. ON JUNE 13TH ONE BARE WIRE WAS FOUND, AND REPAIRED IN THE LT CONTACTOR BOX.