As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#525, PVD-SJU. 'NOTICE OILY/FUEL SMELL AT FL200 ON DECENT WITH PWR AT IDLE SMELL CONTINUE UNTIL 10,000 WHEN APU WAS STARTED AND APU BLEED USED. DIDN'T SEEM ASSOCIATED WITH APU; COMPLIED WITH INFORMATION NOTICE 2017-T015K SECTION B2, IDENTIFIED TYPE 1 LEVEL A DECONTAMINATION WAS ACCOMPLISHED PER TSM 05-50-00-810-831-A. APU COOLING FAN LEAKING AND PLACED APU ON MEL. AIRCRAFT IS OK FOR SERVICE.'