As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW-PIT - FLT 2201 - ON APPROACH INTO PIT, AN OIL LIKE SMELL IN THE CABIN WAS REPORTED COMING FROM BOTH PACKS WITH SMOKE DETECTORS IN LAVATORY SOUNDING OFF. FLIGHT LANDED AT PIT WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED INTAKES AND TURBINES OF BOTH ENGINES. NO OIL SERVICE REQUIRED. REPLACED BOTH WATER SEPARATOR BAGS. RAN ENGINES WITH PACKS ON. OPERATIONAL CHECK GOOD. (M)