I had heard there had been a fire incident with it at some time and that it had gone to the big hangar in the sky.
Are you thinking of XV257? ........on patrol off Land's End on the 3rd June 1984 when a fire in the bomb bay forced the crew to return to their base for an emergency landing. The fire may have been caused by a flare. The Nimrod was not repaired and was used as a spares source before being scrapped.
http://nl.!!!!!!!!!!!!!!/photos/photos/9/9/3/1053399.jpg