This serious incident occurred during the demonstration of an engine failure after takeoff emergency procedure on a revalidation flight for the commander’s type rating instructor qualification. The engine failure was simulated by the commander reducing Engine No 1’s throttle to idle. Shortly afterwards the commander increased the throttle setting, but Engine No 1 did not respond. During attempts to resolve the problem, the throttle setting for Engine No 2 was inadvertently reduced, resulting in insufficient power being available for continued safe flight. The commander rejected the takeoff and…