What was found
WHILE EN ROUTE, AIRCRAFT HAD FORWARD CARGO DOOR INDICATION LIGHT ILLUMINATE. DIVERTED JFK. OVERWEIGHT LANDING. *S/D* LARGE FORWARD CARGO DOOR ELECTRICAL CONDUIT PULLED AT LINK ARM PIVOT POINT AT FORWARD BRACKET WHEN DOOR IS CLOSING CAUSING ELECTRICAL CONNECTOR TO DISLODGE AND GIVE EICAS INDICATIONS. REPLACED DAMAGED CONDUIT ASSEMBLY 287T4325-1. LARGE FORWARD CARGO DOOR OPS CHECKS NORMAL.