What was found
FA'S ARE REPORTING BURNING SMELL OF PLASTIC IN CABIN BACK AREA OF AIRCRAFT. ENGINES WERE NOT RUNNING AT THE TIME. APU WAS RUNNING. DURING T/S FOUND GROUND WIRE ERJ-L1151-14N HANGING IN FWD GALLEY. PERFORMED FIM 21-20-00-810-801-A, FOUND TO BE TRANSITORY CONDTION OF THE AIR CONDTIONG PACKS OR OTHER COMPONENTS PER FIM 21-20-00-810-801-A NO FURTHER DEFECTS NOTED REF ATS TRIAD WORKSCOPE. REPAIRED GROUND WIRE ERJ-L1151-14N IAW EMB 175 SWMP 20-41-3.