As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED, MELTING PLASTIC ODOR FOLLOWED BY BLEED NR 2 OVERHEAT WHILE IN ICING CONDITIONS. MAINTENANCE PERFORMED FIM TASK 36-11-00-810-803A, REMOVED AND REPLACED FAN AIR VALVE FILTER IAW EMB145 MM 36-11-03. PERFORMED OPS CHECK IAW EC3610-01062 STEPS 2.4 THROUGH 2.12. NO BURNING SMELL NOTED. AIRCRAFT RETURNED TO SERVICE.