As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 279 - EWR - PRIOR TO PUSH BACK CABIN BEGAN TO FILL WITH SMOKE. DURING T/S FOUND OIL LEAKED ON COALESCER BAGS DUE TO APU OIL TANK BEING OVERSERVICED. REMOVED AND REPLACED COALESCER BAGS CLEANED APU OIL TANK VENT HOLE, DRAINED 2 QTS OF OIL. TANK NOW READS FULL ALSO CLEANED AIR INTAKE BOX. (M)