I know this was addressed to non North Sea folk but as a North Sea driver, I have to acknowledge the high professional standards of the engineering community with whom I work. The aircraft are flying a high number of hours and are not available to our maintainers for long before they are next needed on the line. The inherent nature of complex helicopters are such that defect rectification is a bit like a M.A.S.H. field hospital. "Incoming wounded" is the call from Engineering when a returning aircraft calls in "returning u/s". Unfortunately, our line engineering staff don't get the support from management with the required level of second line support,spares ,equipment, hangar facilities or continuation training. It should not be like fighting a front line war all the time. But our guys keep on producing the goods.