The warning comes after Corus UK Ltd., trading as Corus Tubes in Hartlepool, was fined a total of £15,000 and ordered to pay costs of £6,248 at Hartlepool Magistrates Court after pleading guilty to a charge under Section 2(1) of the Health and Safety Work etc. Act 1974 following the incident on 27 April 2007.

HSE inspector, Bruno Porter, said: “The crane operator was nearby using a remote control to lift a raft of steel beams, the longest one, some 16m in length and weighing about 1.7t, using a magnetic crane attachment. A beam snagged on the side of the building and fell from the crane, hitting the operator. He suffered severe injuries to his back and leg which left him unable to work for months.”

He added: “Electro-magnetic attachments to cranes can reduce certain risks, such as having to climb onto loads to sling and release the load. However, these magnets can drop their loads for a number of reasons and it is important that no one is anywhere near the suspended load until it is in a safe position.”

In this case, he explained, the combination of the length of the steel beams and the site layout meant there was no safe operating position.

“The problems with magnetic cranes were well know at Corus and an alternative way of working should have been found to protect both the operator and other workers in the area,” Porter concluded.