As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED, THE NR 4 ENGINE FLAMED OUT AND WENT INTO FEATHER ON DESCENT TO LICZ. MAINTENANCE REMOVED AND REPLACED NR 4 PROPELLER VALVE HOUSING ON FLIGHT LOG PAGE 26683 WITH UNSATISFACTORY RESULTS. AIRCRAFT FERRIED FROM LICZ TO ETAR, LOG PAGE 26684. ENGINE CHANGE ACCOMPLISHED BY MAINTENANCE IN ETAR ON LOG PAGE 26685. SUSPECT FAULTY NTS PLUNGER IN REDUCTION GEARBOX. FAILURE ANALYISIS UNDER INVESTIGATION.