As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR1 ENGINE FUEL FLOW DECLINED TO IDLE AND REMAINED IN-FLIGHT. FEATHERED PROPELLER, LT ENGINE RUNNING AT IDLE. ALL ENGINE INDICATIONS NORMAL FOR IDLE NG. UNABLE TO CONTROL ENGINE WITH POWER LEVER. FOUND NR 1 ENGINE P3 LINE BROKEN AT TEMPERATURE COMPENSATION B-NUT. REMOVED AND REPLACED LINE. OPS CHECK GOOD ON THE GROUND. (K)