One question that is raised is this: Since the costings were based on the 189 and the S92 is more expensive, who is paying for the difference now that there are more S92s than the contract stated?
Someone suggested that the DfT would foot the bill (yes the taxpayer) but surely it must be the contractor since it is a deviation from the contract? ... ...
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Now lets see. Who told them they needed to buy AW189s? Who didn't make them in time? Somewhere in that mess is your answer.
(Also true that Bristow weren't too sharp with their order process.)