What was found
FLT 31 BOS -AMS. COCKPIT & CABIN ODOR PASSING 10K IN DESCENT IN COCKPIT & CABIN PILOTS & F/A'S NOTICED LVEL 2 ON ODOR LEVEL CHART.; COMPLIED WITH INFORMATION NOTICE 2017-T015, STEP 1, ISOLATED FAULT TO TYPE 10, (AMBIENT AIR ODOR), PER TSM 05-50-00-810-085-D. NO FUMES OR ODOR AFTER EACH ENGINE RUN. NO SIGNS OF OIL ON THE ENGINES AND APU. AIRCRAFT IS OK FOR SERVICE.