As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRONOUNCED OIL ODOR DURING IDLE DESCENT AND LANDING. ENGINE BLEED AIR. RESIDUAL ODOR ON GROUND, BOTH APU AND ENGINE BLEED AIR. THE AIRCRAFT WAS GROUNDED. MAINTENANCE ISOLATED SOURCE TO APU IAW 26L00021001. MAINTENANCE ACCOMPLISHED 26L00021002 AND 26L00021004. PERFORMED A SATISFACTORY OPERATIONAL CHECK.