Task: Question Generation
Input (English): Context : The Winter Hill air disaster occurred on 27 February 1958 when the Silver City Airways Bristol 170 Freighter G-AICS, travelling from the Isle of Man to Manchester, England, crashed into Winter Hill (also known as Rivington Moor) several hundred yards away from the Independent Television Authority's Winter Hill transmitting station. 
Answer : 27 February 1958
Output (English): The point in time of Winter Hill air disaster was when?