Failure to detect mechanical failure in drive units leading to unsafe working at heights

Industry is alerted to a serious technical fault that HSE has found with mast climbing work platforms (MCWPs) used widely across construction projects. These can be used in other industries for access and to maintain large plant.

Platforms could fall from height where mechanical faults in drive units go undetected. If not rectified quickly, the fault could cause serious injury, or even death.

This safety alert has information and advice on what to do if you supply, install, use, inspect, service, maintain or examine MCWPs for use at work.

Outline of the problem

MCWPs, also known as