What was found
ACFT TAXIED TO GATE AFTER ENGINE SHUTDOWN , NOTICED NR 1 ENGINE TAILPIPE FIRE, AFTER APPROX 3 MINS FLAME EXTINGUISHED TO SMOKE ONLY. REF FIM 71-00 TASK 899 & AMM 78-11-03-210-801-G00 (601) FOR DISPOSITION, CURRENTLY 06 QTS OF OIL ADDED AND NR 2 OIL CONSUMPTION IS AT 0.14 QTS / HR. PERFORMED CENTER VENT TUBE EXTENSION (CVTE) INSP IAW AMM 78-11-03-210-801-G00. NORMAL RESIDUAL OIL PUDDLES & COKED OIL IN CVTE & MIXER ASSEMBLIES. COKED WITHIN CROSS-SECTIONAL AREAS OF CVTE & MIXER ARE WELL BELOW NEGLIGIBLE LIMITS TO IMPACT ON THE VENT PERFORMANCE FOR ENGINE A-SUMP IAW AMM TASK 78-11-03-210-801-G00. PERFORMED ENGINE SMOKE FROM CENTER VENT TUBE AFTER SHUTDOWN OF ENGINE 1, FAULT ISOLATION IAW FIM 71-00 TASK 899. FUMES, SMOKE, OR OIL DROPS FROM THE CENTER VENT. FUMES, SMOKE, OR OIL DROPS FROM THE CENTER VENT TUBE EXTENSION AFTER ENGINE SHUTDOWN IS A USUAL CONDITION, NO SPECIFIC MX ACTION NECESSARY IAW FIM 71-00 TASK 899. PERFORMED TEST NR 4, IDLE LEAK TEST IAW AMM 71-00-00-790-804-G00. DURING 10 MIN IDLE, ENGINE IS WITHIN OPS LIMITS IAW AMM 71-00-00-800-802-G00. AFTER ENGINE SHUTDOWN, REINSPECTED, NO FIRE DAMAGE TO THE CENTER VENT TUBE EXTENSION, NO FIRE DAMAGE TO SURROUNDING AREA.