As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPEAT STRONG WET SOCK OIL SMELL FROM TAKEOFF TO 20,000€™ AGAIN ON DESCENT & WHILE PARKED. AIRCREW WILL DOCUMENT MEDICAL HAZARD. TECH SUPPORT HAS A STRONG SUSPICION THAT THE OIL SMELL IS FROM A FAILED LUBE/SCAVENGE PUMP ON THE LEFT ENGINE. OPEN