As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: OIL MIST ODOR, VERY PRONOUNCED ON DESCENT WITH HP BLEEDS OPEN. ODOR DISSIPATED AFTER TURNING OFF ENGINE #1 BLEED. POST FLIGHT INSPECTION SHOWS POSSIBLE OIL ON AIRCRAFT BELLY. REPLACED DEOILER SEAL (AALA202104099009) AND MATING RING (AALA202104209013) ON LEFT ENGINE IAW AMM 72-60-31.