What was found
SHIP 3351 ON DESCENT AIRCRAFT HAD OILY SMELL THROUGH CABIN AND COCKPIT WITH PACK FLOW IN NORM AND LOW. FIRST CABIN CONTROL BEHIND COCKPIT WAS 124 DEGREES C BELOW 10,000 COULD NOT REDUCE W/CNTRLS. CORRECTIVE ACTION: NO OIL NOTED IN APU BLEED AIR ELBOW. NO TROUBLE FOUND WITH ENGINES. INSPECTED BOTH PACK BAY DUCTS LEFT AND RIGHT NO EVIDENCE OF CONTAMINATION. FOUND LOW PRESSURE COMPRESSOR AND GEAR BOX CASE LEAKING OIL. REPLACED APU. REPLACED LT AND RT PACK FLOW CONTROL VALVE AND PACK WATER EXTRACTOR. COMPLETED DECONTAMINATION OF APU, PACKS AND ENGS. (7906268)