Helicopter Sikorsky S-70i Black Hawk Serial 70-4056 Register N56RT used by Sikorsky Helicopters ,PZL Mielec. Aircraft history and location Aircraft History ? PZL Mielec PZL Mielec msn 0052? N56RT Sikorsky Helicopters Sikorsky from Jan20 Send Updates Use APP to upload photo @ (optional) When Now? / / Send