What was found
MULTIPLE ECAM FAULTS AFTER A-C ARRIVAL. SWINGS REPORTED FAULTS OCCURED DURING POWER SWAP? ECAM FAULTS. LG CUI 2, REVERSER 2, MAIN GALLEY SHED, MAINT MESSAGE ENG 2 EIU, OVERHEAD PBSW FAULT LIGHTS ENG2 YELLOW HYD, BLUE HYD SYS, ENGINE INDICATIONS WITH FADAC OFF NR 2 EPR AND PERCENT RPM AMBER FOR ALL OTHERS. SWAPPED LGCIU, GCU AND SDAC NO HELP, SUSPECT DC ESS BUS. REPLACED LT MAIN LANDING GEAR FWD PROXIMITY SENSOR 23GA IAW AMM 32-31-73 AND INDICATION NORMAL NOW.