A Moormanair DC-3 aircraft experienced a significant accident during a night takeoff to return supporters to the Netherlands. A sudden loss of manifold pressure caused an oil leak, leading to a fall in pressure and subsequent landing. The pilot initiated a 15-degree flap landing to avoid an overshoot, resulting in touchdown at half-way point, overrunning the runway and colliding with an earth bank. Three passengers and four crew were injured. The aircraft sustained substantial damage.A Moormanair DC-3 aircraft experienced a significant accident during a night takeoff to return supporters to the Netherlands. A sudden loss of manifold pressure caused an oil leak, leading to a fall in pressure and subsequent landing. The pilot initiated a 15-degree flap landing to avoid an overshoot, resulting in touchdown at half-way point, overrunning the runway and colliding with an earth bank. Three passengers and four crew were injured. The aircraft sustained substantial damage.