What was found
NR 2 ENGINE SHUTDOWN, AC BUSS 2 FAULT ON ECAM. REMOVED & REPLACED THE NR 2 ECMU IAW AMM 24-29-34. BITE TEST FAILED NR 1 ECMU ATA 242255 GLC-2(9XU2)/ECMU(1XM1). REMOVED & REPLACED CONTACTOR 9XU2, OPS CHECKED OK IAW AMM 24-22-55-400-803A. ACCOMPLISHED TSM 24-22-00-810-871-A, BITE #1 & #2 ECMU'S PER AMM 24-29-00-740-801-A OK. BITE GAPCU PER AMM 24-41-00-740-801-B OK. BITE LGCU & RGCU IAW AMM 24-41-740-801-B OK. GROUND RAN LT & RT ENGINES, CHECKED AC BUSSES WITH BOTH ENGINES, APU & EXTERNAL POWER ON, POWER TRANSFER NORMAL. OK FOR SERVICE.