As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE, CO-PILOT NOTED FLAMES COMING FROM RT ENGINE STACKS. ALL ENGINE PARAMETERS CHECKED NORMAL. ENGINE SHUTDOWN AND PROP FEATHERED AS PRECAUTIONARY MEASURE. ACFT LANDED SAFELY, NO IMPACT ON OPERATIONS. ENGINE REMOVED AND SENT FOR INSP AND CONDITION CHECK. NO DAMAGE OR DEFECTS FOUND. ENGINE REINSTALLED, NO FURTHER PROBLEMS REPORTED.