The 60 metre boom of a large All Terrain crane came down onto the roof of a new school Gymnasium in Litzendorf near Bamberg, Bavaria in Germany last week.
The crane from Autokran Merkel lost stability while preparing to carry out a lift last Thursday. Fortunately the concrete roof beam was strong enough to prevent the crane going over completely and no one was injured. The gymnasium structure is also reported to be stable and undamaged.
The operator had been was apparently extending the boom when the crane lost stability.