What was found
FLT#362, SJU-BOS. 'OIL FUME ODOR PRESENT DURING DESCENT WITH HP BLEED VALVES OPEN. ODOR ISOLATION PROCEDURE PERFORMED AND ODOR SEEMED TO DISSIPATE A LITTLE WITH PACK 1 SELECTED OFF. MX-270 ODOR REPORTING FORM COMPLETED; REF L/P 3910264 ITEMS 1 (UPON INSP FOUND APU COOLING FAN ASSY LEAKING. REMOVED AND REPLACED AND CLEANED AIR DUCTS IAW AMM 49-52-51. NO LEAKS NOTED.) AND 2 (REINSTALLED #1 ENG PL SHAFT BLIND CAP AND NEW SEAL. REF AMM 72-51-41) FOR RESOLUTION. REF L/P 3910265 (PERFORMED INFO NOTICE 2017-T015 AND PERFORMED LEVEL A DECONTAMINATION OF BOTH BACKS WITH APU BLEED AIR. IAW AMM 21-00-00-615-802. HEPA AND OZONE FILTERS REQ'D CHANGE BEFORE FINAL INSP OF AIR QUALITY) FOR DECON.'