What was found
SUPPLEMENTAL INFORMATION (WORD CORRECTION, "NORTH1" TO "NOTCH1"): FLT 1579, DCA-FLL. PASSING 8000 IN DESCENT STRONG ODOR OF OIL. NO APU AT THE TIME AT SHUT DOWN TRANSFERED A/C TO APU GOT ODOR AGAIN. (DIRTYSOCKS); PERFORMED TSM TASK 05-50-00. FOUND APU OIL OVERSERVICED. SERVICED TO PROPER LEVEL PER MM 49-90-00. FOUND ENG NR 1 + ENG NR 2 OVERSERVICED PAST NOTCH1. SERVICE ENG NR 1 + ENG NR 2 TO PROPER LEVEL PER TASK NO. J3K-20-D STEP 9. RAN APU ENG NR 1 + ENG NR 2 WITH NO OK ODOR IN CABIN. COMPLIED WITH INFORMATION NOTICE 2017-T015A SECTION B TABLE 1 AIRCRAFT IS OK FOR SERVICE.