Back in 1971 the training section and the original computer for Shanwick were about the only things in Atlantic House.
The building and the fire escapes had separate foundations and the building was sinking faster than the stairs resulting in the doors being changed to open inwards and the increasing gap at the bottom (already about a foot at that time) being boarded up.
another name from the past. The Danair Pilots' Delight, Daphne Donkin