What was found
FLT#1643, JFK-BON. 'CABIN ODOR REPORTED BY FA DURING SHORT FINAL CABIN ODOR REPORTING FORM ATTACHED ( PACKS ); FOLLOWING TSM TASK 05-50-00-810-085. FOUND OIL ON INLET PLENUM AND COMPRESSOR AREA OF APU. REF TO MDDR # 567522 FOR APU DEFERRAL. APU BLEED WAS THE SOURCE OF ODOR. ACCOMPLISHED LEVEL B DECONTAMINATION OF THE ECS IAW AMM 21-21-41. NO SMELL NOTED PACK 1 NOW OPERATIONAL. THIS CLEARS THE MDDR. MX-4 UPDATED PLACARD RMVD.'