NEW : The experienced commercial pilot had afternoon of flight time . NEW : A team of 15 Congress members are investigating . The victim -- a British citizen from Sydney -- was traveling with family members and friend . 15 others escaped after the helicopter sank in East River .
NEW : The experienced commercial pilot had 2,200 hours of flight time . NEW : A team of 15 NTSB members are investigating . The victim -- a British citizen from Sydney -- was traveling with family members and friend . Three others escaped after the helicopter sank in the East River .