What was found
ATB - FUMES IN CABIN 3 CREW REPORTED SYMPTOMS INCLUDING SHORTNESS OF BREATH AND TIGHTNESS IN CHEST 2 PAX ALSO HAD COMPLAINTS. T/S PD2 TSM 71-00-81 BOTH ENGS OIL LEVEL NOT OVER SERVICED. RAN BOTH ENGS AT IDLE - NO ODOR NOTED WITH INDIV PACKS. NO EXT OIL LEAKS NOTED 428308 PERFORMED DUCT BURN OUT WITH ENG RUN AT IDLE AND HIGH POWER AND APU BLEED. NO SMELL OR DEFECTS NOTED REF AMM 21-00. REPLACED RECIRC FILTERS REF JIC 2125-9401-HAL OK FOR SVC.