As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2756 THE CREW REPORTED THE NR 1 ENGINE WAS SMOKING AFTER SHUTDOWN. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1 ENGINE SHAFT PLUG SEAL AS PER MM 72-59-15. NO LEAKS NOTED AT THIS TIME. OPS CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.