As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESENT, A STRONG OIL ODOR WAS COMING FROM THE VENTS, THROUGHOUT CABIN & FLIGHT DECK. BLEEDS NORMAL & OOF OF ENGINES. ODOR DISSIPATED AFTER BLEEDS TRANSFERED TO APU. PERFORMED AN OPS CHECK OF THE LT AND RT PACKS WITH ENGINES AS BLEED SOURCE IAW AM 21-50-00-862-805. NO ODORS NOTED, ACFT OK FOR SERVICE.