What was found
OIL FUMES DURING DESCENT BELOW 10,000 FT, HP VALVE WAS OPEN, FOUND APU OIL OVERSERVICED. REMOVED EXCESSIVE OIL, CLEANED APU, APU BAY, AND INLET DUCTS. ACCOMPLISHED PACK BURN. ACFT OK FOR SERVICE. ACCOMPLISHED ECS DECONTAMINATION IAW 21-00-00-615-002-A.