What was found
EMERGENCY RETURN DUE TO NUMEROUS FAILURES & CAS MESSAGES. IRS 2 FAULT/ FOLLOWED BY SUSPECTED IAC 2 FAILURE. FMS 2, RMU 2, DU 4 & DU 5 FAILED. AMBER CAS MESSAGES ASSOCIATED WITH IAC 2 FAILURE. CAS MESSAGES FADEC REV ADC L, FADEC FAULT LB, PRI-STAB TRIM FAIL, PITCH ROLL DISC, FLT CONTROL FAULT. CYAN MESSAGES CVR FAIL, FGC FAIL, RUDDER FLT CONTROL SHUT-OFF SWITCH ILLUM & PRIMARY TRIM FAILED RT BUSS SWITCHED TO EMERGENCY & WOULDN`T UNLATCH, X-TIE OPEN. RT T/R WOULDN`T DEPLOY & NLG STEERING FAILED. FLAP & SLAT FAILED & RT ENGINE INSTRUMENTS FAILED. FOUND RT BUSS DROPPING OFF LINE. RT ENGINE CURRENT TRANSFORMER FAILING CIRCUIT RESISTANCE TEST. RETORQUED GROUND NUT, TRANSFORMER PASSED TEST IAW C750 MM.