What was found
(CAN) RT GEN FAILED DURING TAXI TO GATE. GEN DISCONNECTED & QRH PROCEDURE COMPLETED BY CREW. FOR FOLLOWING FLT, A/C DISPATCHED IAW MEL 24-1. 4 HOUR FLT CONDUCTED TO NEXT STA & ON ARRIVAL, MX NOTICED SMOKE COMING FROM NR 2 ENG. INVEST REVEALED PAINT BLISTERING ON LOWER COWL IN VICINITY OF GEN. A/C GEN FOUND SMOLDERING & EMITTING HIGH LEVELS OF HEAT & GEN HOUSING FOUND DISCOLORED. CSD NOT DISCONNECTED & IS NOT REQUIRED TO BE DISCONN IAW QRH & MEL PROCEDURES. WITHOUT DISCONNECTING DRIVE, GEN WILL CONTINUE TO SPIN. TO AVOID SUCH THIS, OPS WILL REVISED QRH & MEL PROCEDURES IN ORDER TO DISCONNECT CSD FOLLOWING GEN DISCONNECT.