Helicopter Sikorsky S-61L Serial 61-453 Register N6981R used by Carson Helicopters. Built 1972. Aircraft history and location Aircraft History N6981R Carson Helicopters 1972-03-20Sikorsky S-61L-5, c/n 61-453, ff? del Carson Helicopters as N6981R, 20Mar72. Send Updates Use APP to upload photo @ (optional) When Now? / / Send