As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF NR 1 ENGINE TORQUE DROP TP 40 PERCENT IN FLUX THE INCREASED OVER 108 PERCENT FOR 15 SECOND PROPELLER RPM DROP TO 350. REMOVED TORQUE SENSOR CONTROL UNIT NR 1 ENGINE. FOUND MOISTURE IN CONNECTOR. REPLACED TORQUE SENSOR CONTROL UNIT.