What was found
IND - FLT 444 - DURING CRUISE, SMOKE STARTED ENTERING CABIN. DESCENDED TO 8,000 FEET. FOUND APU OIL OVERSERVICED. SERVICED APU TO PROPER LEVEL AND REPLACED BOTH COALESCER BAGS, MFG P/N 22D10. AIR CONDITIONING SYSTEM OPERATION CHECKED NORMAL. CHECK C-1A - 5-18-95 - MCI.