Posted By Bev A place is at height if a person could be injured falling from it - according to indg 401 from the HSE. So if you can't fall from the crane (once you're in it I presume this isn't possible) then it isn't. If you can't fall from a helicopter then this isn't either. I should think BAA, Ryanair etc are all relieved about this - think of all their stewards/esses & pilots! See El Nino's thread about sitting at height - I think he's just strapped himself into his office chair!