1957 Nutts Corner BEA Viscount crash

[1][2] It was the first 800 Series Viscount built and was used by the manufacturer Vickers-Armstrongs for test and promotional flights prior to delivery.

[2] On the afternoon of the accident the aircraft took off from London Heathrow Airport at 15:16 GMT on a non-scheduled positioning flight to Nutts Corner Airport in Belfast, Northern Ireland, where it was due to pick up the UK government Minister of Supply Aubrey Jones and a group of journalists, who had been attending the opening of a research building for Short & Harland Ltd in Belfast.

[3] An hour-and-a-half later, with low cloud and rain at Nutts Corner, the aircraft commenced its approach to land from the east on runway 28.

[1][5][6] A public inquiry was convened to investigate the accident, during which it emerged that the airport's approach lighting system may have been switched off at the time of the aircraft's landing attempt.

[4] At the conclusion of the inquiry, while it made recommendations regarding the security of aircraft crash sites and tool control during maintenance, and suggested that records be kept of when airport approach lighting was switched on or off, no official cause of the accident was determined.