CC,
Point taken, becomes more a case of the best of a bad situation I guess. Might be worth while for operaters in that situation to carry the extra 300 kg's of fuel on sectors into DN maybe, While there are obvious economic considerations in doing this to begin with, one can only assume that companies that find themselves facing such possibilties would have carried out some form of risk assessment and decided on the best course of action to suit them, including approved alternates. As a charter pilot flying "lighties" it certainly is food for thought.
88B