Thanks Dani,
Seems to make more sense than some of the ballyhoo above.
By the way, years back the New Zealand Antarctic crash investigation did find that mistakes in the Nav Data Base - provided by Swissair in those days - could have been a contributing factor.
Publication/data base contracts are nice to get but are a heck of a responsibility. I have seen imperfect Jepps and Japanese charts too, for that matter.