What was found
AFTER TAKEOFF, HAD A SMOKE SELL FROM AN UNIDENTIFIABLE SOURCE. NO SMOKE WAS VISIBLE. NO UNUSUAL INDICATIONS, NO C/B OPENED, SMELL DISSIPATED WITH APU SHUT DOWN) - FOUND APU OIL TANK OVERSERVICED, OPERATED APU FOR AN EXTENSIVE PERIOD WAS ABLE TO DUPLICATE SMELL FOR A SHORT TIME THROUGH AIR OUTLETS, CONTINUED OPERATING APU TO PURGE EXCESS OIL. SCENT OF OIL NO LONGER PRESENT. WORK PERFORMED AS PER 560 MMCH 49-00-00 AND 12-11-03.