A wind turbine on Rathlin Island off the north-east coast of Northern Ireland is out of action after the rotor fell to the ground. The 33 kW two-bladed MAN turbine is one of three wind/diesel/battery systems that provide electricity for all the island's inhabitants. The blades and hub of the machine broke off in mid November. Northern Ireland Electricity, which operates the turbines, can shed no light on the cause of the failure but NIE's Joanne Crockard says it is being investigated. She stresses, however, that the incident has not disrupted electricity supplies on the island. Meanwhile the three year old machine is being repaired by its German manufacturer, Aeroman.