As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE TO LGA, FLT ATTENDANT REPORTED A HAZE AND SMELL OF SMOKE IN CABIN. LAVATORY SMOKE DETECTOR WAS SOUNDING. AIRCRAFT LANDED WITHOUT INCIDENT. INSPECTED AND FOUND LEFT ENGINE LEAKING OIL INTO COMPRESSOR SECTION, CAUSING OIL VAPORS TO ENTER CABIN THROUGH BLEED SYSTEM. REMOVED AND REPLACED LEFT ENGINE. AIRCRAFT RETURNED TO SERVICE. (M)