What was found
FLT 188, SEA-BOS. TOXIC FUMES ENTERED THE COCKPIT AT AROUND 11,000' THROUGH ABOUT 4,000'. DETECTABLE BY MULTIPLE CREWMEMBERS. MILD TO MODERATE SYMPTOMS. LEVEL 2 EVENT AS PER FOM 1.51.3; COMPLIED WITH INFO NOTICE 2017-T015 G, SECTION A(A). ISOLATED FAULT TO TYPE 10, (A), 1 C PER TSM 05-50-00-810-085-B AND TSM 05-50-00-810-085D. AIRCRAFT OK FOR SERVICE.