I was fortunate to be based at Heathrow Central Area, with BEA 'flight engineering' looking after preflight and turnround defects. Also spent some time with 'project and developement' which gave me the opportunity for test flights. A remarkable aircraft - all of our fleet had Decca Navigator fitted which was a major navaid at the time. I was due to fly on a night freighter to Copenhagen, but missed out due to my ancient car breaking down on route to Heathrow. The Viscount (800 series) suffered complete engine failure on the approach and the crew managed to land in a field without injury, but I think the a/c was a 'write off'. The capt. was a keen member of the Silver Wing gliding club which probably helped!.