What was found
AIRCRAFT WAS GROUNDED: RAMP REPORTS OPEN FLAMES COMING FROM TAILPIPE OF #2 ENGINE FOR OVER 1 MINUTE AFTER SHUTDOWN. OIL NOTED RUNNING DOWN TURBINE BLADES AT 6 O CLOCK POS. MAINTENANCE FOUND A CONSIDERABLE AMOUNT OF CARBON/COKING IN THE #5 BEARING SUMP DURING INSPECTION. MCD, FILTERS AND SCREENS WERE FOUND CLEAN AND FREE OF DEBRIS. A DECISION WAS MADE TO REPLACE THE ENGINE BEFORE FURTHER FLIGHT. MAINTENANCE REMOVED AND REPLACED THE # 2 ENGINE IAW JOB CARD 26L40071004. OPS AND LEAK CHECK GOOD.