When asked if I would contribute to this afternoon's discussion I wondered what there was that I could say in such a field as Standards of Maintenance Coming from the Design side of this vast organism the Aircraft World and having had very little to do with the maintenance of aircraft, let alone helicopters, m what way could I contribute when there were so many other far more knowledgeable, capable and experienced people and, in any case, when were the Design side concerned about maintenance of anything, their heads always in the clouds, hovering at Mach numbers of one or above with a safety factor of 15?