What was found
RDM - APPROCH INTO RDM, NR 2 ENG TORQUE DROPPED FROM APPROX 40 PERCENT TO 0 PERCENT, FOLLOWED BY YAWING OF A/C. ADVANCED NR 2 POWER LEVER, TORQUE WAS RESTORED. ALMOST IMMEDIATLY NR 1 TQ DROPPED FROM APPROX 40 PERCENT TO 0 PERCEN. ADVANCED PWR LEVER AND TQ WAS RESTORED. WEATHER WAS SNOWING, ALL ENG DEICE WAS ON. NO EVIDENCE OF ICE WAS ON THE A/C. A/C LANDED IN RDM W/O FURTHER INCIDENT. OPS CHECK OF NR 1/2 AIR INTAKE AND DEICE SYS PERFORMED, AIR INTAKE INSP PERFORMED, POWER ASSURANCE RUN ACCOMPLISHED ON NR 1/2 ENG, ALL CHECKS WERE NORMAL. REPLACED NR 1/2 FUEL FILTERS. FUEL SAMPLES TAKEN, WATER AMOUNT IN FUEL WAS ABOVE NORMAL BUT NOT ENOUGH TO CAUSE ENG POWER LOSS. FDR REMOVED FOR FURTHER ANALYSIS.