What was found
DURING TAXI, RT ENGINE WOULD NOT SHUTDOWN. CIRCUIT BREAKER FOR RT ENGINE FUEL SWITCH TRIPPED. MAINTENANCE FOUND WIRES SHORTED RT SIDE OF ATC TRANSPONDER NR 1 AND FOUND BURNED WIRES ON TOP OF ATC NR 1. INSPECTED WIRES IAW SWPM 20-10-01, WIRES THAT ARE OUT OF LIMITS ARE N5201-1010-12A, N5201-1011-12B, N5201-1015-20, N5201-202-22. SPLICED WIRES N5201-1010-12A, N5201-1011-12B, N5201-1015-20 & N5201-202-22. RESET BREAKERS AND CHECKS NORMAL. REPLACED NR1 ATC TRANSPONDER IAW AMM 34-54-02 AND OPS WAS NORMAL. TIED AND ROUTED WIRE BUNDLE N5201. ENGINE RUNS NR 1 & NR 2 WERE NORMAL IAW AMM 71-00-04.