The tail section of a Trident which I believe to have been 'PI was visible on the dump at Farnborough the first few times I went there - presumably ex AAIB. It was sitting there in a manner most reminiscent of the terrible photos I remember of the crash at the time.
But IIRC, a clear out happened more recently - mid 80s? -and most of the wrecks there went to the smelting pot.