What was found
FLT#677, JFK-JAX. ' ODOR SMELLED DURING DESCENT BY FLIGHT CREW FLIGHT ATTENDANTS AND CONFIRMED BY DH PILOT (PACKS); ACCOMPLISHED INFO NOTICE 2017-T015I SECTION B AS REQUESTED W/ REF TO TSM 05-50-00-810-831-A. APU OIL WAS FOUND TO BE OK AND NO LEAKS WERE NOTED AROUND APU. NO LEAKS WERE NOTED ON EITHER ENG 1 OR 2. PNEUMATIC DUCTS OF BOTH ENGS OPENED UP WITH NO SIGNS OF OIL. PERFORMED LEVEL B ECS DECON PER SAME TSM. NO ODOR WAS NOTED AFTER DECON FROM APU OR ENGS AT THIS TIME. MDDR 475979 CLEARED. '