What was found
(CAN) MAIN BATTERY CB FOUND POPPED ON TAXI INTO GATE, NO EICAS MSGS, 1D1 MAIN BATTERY INOPERATIVE. WHILE MX WAS REPLACING SSPC K100 & PERFORMING THE OPERATIONS CHECK THEY FOUND NO CURRENT INDICATION FOR MAIN BATTERY. FOUND SHUNT SENSE WIRES, PN 8406-100, PREVIOUSLY INSTALLED INCORRECT. ONCE SHUNT SH1 SENSE WIRES WERE SWAPPED TO THE CORRECT ORDER, THE CURRENT INDICATION RETURNED & SSPC CHECKED SERVICEABLE. NOTED THERE WAS NO MARKINGS ON THE SHUNTS AS TO (-) OR (+) CONNECTIONS. THIS INCORRECT ASSEMBLY COULD HAVE EASILY BEEN DONE AT THE FACTORY.