The boom of a 100 tonne Liebherr LTR 1100 telescopic crawler crane collapsed on Monday while working on a concrete tilt-up job in Brisbane, Queensland, Australia.
The crane owned by Master Projects was reported to be working out of level and the boom subjected to serious side loads.
As a result the boom was literally ripped sideways from its pivot point.
Close up photographs of the boom base and pivot area indicate a severe overloading which ripped thick steel plate, while the forged lift cylinder pivot was sheared in two.
A number of vehicles were struck by the falling boom, but thankfully it missed the site office and no one was injured.
Category: Accident Report