What was found
YUL FLIGHT#4092 THE CREW REPORTED A LAV SMOKE WARNING ON THE EICAS AND A STRONG OIL SMELL IN THE CABIN.MAINTENANCE INSPECTED AIRCRAFT FOR SMOKE OR FIRE DAMAGE AND NONE WAS FOUND.THE APU WAS DETERMINED TO BE GIVING OFF THE OIL SMELL AND WAS PLACED ON MEL.MAINTENANCE INSPECTED THE APU ON 11/23/02 AND FOUND THE APU WAS OVERSERVICED WITH OIL.MAINTENANCE SERVICED THE APU TO THE PROPER LEVEL AND OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.