What was found
NDIS 643 30-00 0030750 18DEC21 ROC ASSGN CAPT REPORTED RTO DUE TO ICE COND A/I INOP MSG BELOW 25KTS. ADVISED CREW OF NORMAL OPERATION AND TO PERFORM PNEUMATIC CHECK. NO DEFECTS NOTED ON CHECK. A/C OK FOR SERVICE. FACT 19DEC21 03:44 ROA COMPLIED WITH FIM TASK 30-80-00-810-803-A. NO EICAS MSGS. STEP 1 + STEP 10, TRANSITORY CONDITION OF ANTI ICING ELECTRICAL CIRCUIT. OPS CHECKS GOOD. C/W'D STEP 2, CHECKED GROUND STUDS GS0261DC, GS0572DC, GS0573DC & GS 0923SH FOR INTEGRITY AND RESISTANCE VALUES NO DEFECTS NOTED. R/R'D RELAY K0535 IAW 20-13-02-01. CLEAR MEL.