What was found
WING ANTI-ICE FAILED AND ICE COND A1 INOPERATIVE MESSAGE ON EICAS IN FLT, IN ICE CONDITIONS. REMOVED AND REPLACED THE WING NR 1 ANTI-ICE PRESSURE SWITCH IAW AMM 30-11-02, FOUND A LOOSE SENSE LINE, INSTALLED THE LINE, NR 2 WING OPS CHECKED IAW AMM 30-00-00, CHECKED GOOD. AIRCRAFT OK FOR SERVICE