As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SHUTTING DOWN BOTH ENGS DURING POST FLIGHT WITH NR 2 ENG OFF FOR AT LEAST 10 - 15 MINUTES SMOKE IS STILL COMING OUT OF THE FRONT TAIL PIPE. NO FLAMES PRESENT JUST SMOKE. TRANSFERRED TO NRWC 933-CVG-01622. R & R ENG 2 IAW WC 71-000-00. OPERATION CHECKED GOOD & LEAK CHECKED GOOD.