Delta Airlines Boeing 747 Crashes Into Aircraft Tug - JFK Airport Security Camera

http://AviationExplorer.com - It looks as if the Aircraft Marshaller that was in front of the Delta 747 is at fault. When he brought his hands back down, the pilot thought all was secure and that the jet was hooked up so the pilot released the brakes. The tow bar wasn't even attached when the 747 started to roll. There was a mis-communication with the ramper that was performing the signalling. If the jet was to be towed in, the engines would have been shutdown prior to this. The tow bar was not connected to the tug and was pulled out of the way by the ramper and was not connected to the tug or the aircraft. The ramper on the ground was signalling for the pilots to "hold" without the proper wands and only for a few moments, but then he just walked away. The ground crew was not plugged into the plane and if the pilots knew they were getting pulled into the gate, the engines would have been shut down. Does anyone have a factual cause?? Please comment.

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