What was found
ON FLIGHT 3302 THE CREW REPORTED THAT ON APPROACH THEY DECLARED AN EMERGENCY FOR A WING ANTI-ICE FAIL FOLLOWED BY A BLEED 2 VALVE FAIL. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. CMC POSTED WING 1 LEAK REPLACED COUPLINGS AT LEFT DUAL TEMP CONTROL VALVE NORMAL PACK OPERATION EMB 145 AMM 21-51-00. OPERATIONAL TEST OF ANTI-ICING SYSYTEM IAW EMB 145 AMM 30-00-00 CHECKS GOOD. BLEED 2 VALVE CHECKS GOOD EMB AMM 36-11-05. REMOVED AND REPLACED COUPLING GOING TO HEAT EXCHANGER IAW EMB 145 AMM 21-51-00. THE OPERATIONAL CHECK WAS GOOD IAW EMB 145 AMM 21-00-00. THE AIRCRAFT WAS RETURNED TO SERVICE.