I fully accept that if there are suspicions raised of peculiar behaviour in the icing behaviour of fuel it should be investigated, and not for just one engine/aircraft set-up, but for all.
However, the present information is based on an unrepresentative fuel/water mix and hence can only be indicative of a possible problem. Only when either the icing problem is found to occur with a properly representative set-up OR when a suitable explanation for a different fuel/water mixture is found can any reliance be placed on thetest results.
The false start given by various non-AAIB press releases is irresponsible.
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