What was found
DURING APPROACH, FROM 7000 FT TO 3000 FT, THE AIRCRAFT WAS AT IDLE AT 3000 FT, A STRONG ODOR OCCURED, AFTER FULLY CONFIGURED AND ENGINES POWERED UP, AND THE ODOR DISAPATED. PERFORMED TSM 05-50-00-810-831-A, FOUND OIL COMING FROM DEOILER OF THE NR 1 AND 2 ENGINES. REMOVED AND REPLACED THE DEOILERS IAW AMM 72-60-31. LEAK CHECKED GOOD. ACFT OK FOR SERVICE.