dubrovnik
Please pm, explain "shadow box " , and which / when,.. was that a Britannia in early 60s?
I landed there the next day and visited the site. I seem to remember an unusual approach , (ILS working, but notammed as out of service) , taking 4 approach markers instead of 3, which could have lead to incorrectly crossing them each at the height specified for the next.
They CFIT about the inner marker , querying on the RT about 'ground fog' when they lost sight of the runway , it was a gin clear night and they were below the trees