The loss of Papa India was instrumental in Voice Recorders becoming compulsory on British registered airliners.
BEA lost a number of aircraft over its lifetime (1946 to 1974). I know one of its De Havilland Herons crashed in Scotland in the early 1960s, it also lost a Viscount in Scotland around 1973 and another Vanguard had its tail fall off resulting in a fatal nosedive in Ghent in 1971/72.
The Heathrow Vanguard crash was in 1966.
I always think that the Ghent Vanguard accident is almost completely forgotten about these days.