What was found
FLT 9757 - ORD - ON TAKEOFF ROLL, NR 1 DC GEN KICKED OFF LINE AND RESET, NR 1 GEN GCU SHOWS GEN FAULT AND BPCU SHOWS CONTACTOR FAULT. FOUND CANNON PLUG 411VC AND 401VC LOOSE. TIGHTENED IAW STANDARD PRACTICES. RESET NR 1 GEN GCU AND BPCU, OPS CHECK GOOD. (M)