On February 27, 2001, Sicklesteel Cranes was moving a 500 ton Demag with a luffing jib attached, in preparation of booming it down for disassembly.
Somehow the crane became unbalanced and tipped over.
The boom crushed the two conveyors that feed coal to the top of Trans Alta’s Centralia, Washington coal fired steam power plant, shutting down both generators.
The good news is there were no injuries!
Sicklesteel Cranes is located north of Seattle, they had just finished two picks for P.S.F. Industries. P.S.F. is a subcontractor for Stone & Webster a division of The Shaw Group doing a major emissions upgrade at the steam plant.
The official cause of the accident was due to having too much boom extended at too high an angle and 5 inches of transverse slope in 10 feet on the ground.
Also the operators didn’t reset the air bags to relevel the crane when the ground slope changed from the spot where the crane was set for the pick.
Category: Accident Report