The National Transportation Safety Board, whose investigators were at the scene, planned to clear the wreckage by Tuesday evening and issue a preliminary report in five days, said Dennis Hogenson, acting deputy NTSB chief for the western Pacific region.
"We're looking at the environment, the weather, the pilot, the operators in the helicopter, as well as the helicopter itself, as well as the background of all of the above," he said.
The helicopter, a 2003 Eurocopter AS350, appeared to have rotated counterclockwise before it crashed, he said. He added that the helicopter had been flown on Tuesday morning and was brought back to the downtown area to refuel.
Counter clockwise, looking at the ac from above or below?
Counter clockwise looking from below would be nose to the right, which in a 350 would indicate an engine problem
