As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE TAKEOFF ROLL, THE 2 ENGINE WENT INTO MANUAL. ONE KNOB SPLIT WITH CIRCUIT BREAKERS PULLED AND COLLARD. PULLED AND COLLARD CIRCUIT BREAKERS M8 AND H3. RAN AIRCRAFT. RESET CIRCUIT BREAKERS M8 AND H3. RAN UP TO MAX POWER MULTIPLE TIMES. COULD NOT DUPLICATE PROBLEM. INSPECTED MANUAL SWITCHES. NO DEFECTS NOTED AT THIS TIME. OPS CHECKED GOOD. OKAY FOR SERVICE.