As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YKM- ENGINE POWER ON NR 2 ENGINE DROPPED 20 TO 30 PERCENT ON APPROACH. REDUCED POWER TO FLIGHT IDLE. WHEN POWER LEVER ADVANCED TORQUE STAYED IN THE 0 TO 10 PERCENT RANGE. AS A PRECAUTION SHUT DOWN NR 2 ENGINE. ACCOMPLISHED AN UNEVENTFUL LANDING. REPLACED HMU AND PUMP ASSEMBLY FOR TROUBLESHOOTING. REPLACED T 1.8 PROBE AS A FINAL FIX, OPERATIONAL CHECK GOOD.