What was found
AFTER T/O PASSING 3000 FT, CABIN FILLED WITH SMOKE. FOUND APU OIL LEAKING, CAUSING CONTAMINATION. CONDUCTED BURN-OUT PROCEDURES. REPLACED WATER SEPARATOR BAGS. ACCOMPLISHED RUN-UP, NO SMOKE. REPLACED WATER SEPARATOR BAGS SECOND TIME AND PER FORMED HIGH POWER RUN UP, OPS OK NO SMOKE. FWD APU TO MCO PER MEL 49-00-01A APU INOP.