What was found
FLT # 54, PBI-JFK. DESCENDING THROUGH AROUND FL230 TO TOUCHDOWN THERE WAS A VERY STRONG ODOR LIKE BURNING CHEMICAL THROUGHOUT THE AIRCRSFT ISOLATION PROCEDURE ACCOMPLISHED WITH LITTLE SUCCESS.; COMPLIED WITH INFORMATION NOTICE 2017-T015, SECTION B (2),AND PERFORMED LEVEL A DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SYSTEM IAW AMM 21-00-00-615-802-A. AIRCRAFT IS OK FOR SERVICE.