The prison escape in Chile (Dec 30, 1996) was actually performed by a pilot WILLING to do it. The pilot flying the helicopter on a chartered flight was made to land near Santiago at gunpoint and then another pilot took over to fly back to the prison yard. That prison is in an area of heavy air traffic, so the guards didn't immediately react when a low flying helicopter approached the central yard. The rescue itself was performed by suspending a homemade basket, fitted with several bulletproof vests acting as armour, and taking 4 inmates in it. The guards fired live bullets, but somehow only 3 impacts were received by the helicopter, all in non-critical areas. By the way, the helicopter was NOT a Northern Mountain Helicopters machine, it was a B-206L operated by a local company.