Helicopter Sikorsky S-64B Serial 64-059 Register N6964R used by ERA Helicopters. Built 1969. Aircraft history and location Aircraft History N6964R ERA Helicopters 1969-09-02Sikorsky S-64E c/n 64-059, ff 1969 del ERA Aviation Inc as N6964R unk w/o ivo Prudhoe Bay, AK 02Sep69, 3 fatalities. Send Updates Use APP to upload photo @ (optional) When Now? / / Send