What was found
ENG 2 A/I OFF ALERT AT FL 050 WITH A/I ON IN MODERATE ICING. DEPARTED ILE RETURNED CDG. R&R HARNESS ON ENG 2 PER AMM 71-50-04-4 AND INSTALLED ANTI ICE VALVE NEW ONE PER AMM 30-22-01-4 AND INSTALLED ALL PLUGS. REMOVED BEFORE PER ESMP AND RECONNECTED SENSE LINE AND IDG PLUG TIGHTENED PERFORMED ENG 2 RAN UP PER JRH, ALL PARAMETERS ARE OK AND NO ALERT DISCOVERED DURING ENG RUN UP. ENG 2 COWLING SECURED CLOSED, TAIL CONE AND AFT PLATFORM SECURED CLOSED PER AMM 71-10-00-2 AND 52-46-1-2. A/C OK FOR SERVICE.