What was found
FLT#874, TPA-EWR. 'FUMES SMELT AFTER ENGINE START, VERY FAINT, DURING CRUISE FAINT, AND IN DESCENT VERY STRONG, COULD NOT DETERMINE WHICH PACK USING ISOLATION TECHNIQUE; C/W INFO NOTICE 2017- T015 SECTION B2. IDENTIFIED ODOR COMING FROM APU. DECONTAMINATION LEVEL B WAS ACCOMPLISHED PER TSM 05-50-00-810-831-A . A/C IS OKJ FOR SVC.'