What was found
STRONG EXHAUST ODOR DURING DESCENT UPDATE CREW DEBRIEF WITH TOMC. CREW REPORTED "EXHAUST" ODOR IN C ABIN DURING DESCENT. NO VISIBLE SMOKE NOTED. CREW ESTIMATE AT AP PROX FL 200 ODOR OCCURRED. ODOR WAS IDENTIFIED AS SIMILAR TO JET EXHAUST SMELL WHEN ON GROUND AROUND OTHER A/C. FLAPS WERE UP A LL COCKPIT AIR COND INDICATIONS NORMAL NO PACK OR BLEED AIR FLUCTUATIONS. RAM AIR DOORS NORMAL. FOUND #2 ENGINE OIL OVERSERVICED. CORRECTED ISSUE. RAN BOTH ENGINES AND APU. DID NOT SMELL ANY EXHAUST SMELL. FIM 71-05 TASK 807. FIM 21-00-806