Do not ignore the discussion of Water Ice in fuel. See BA038.
Microcrystalline water ice was held to blame, as the theory had to do with "hitherto unknown characteristics of water ice..."
No new research to see, meanwhile Rolls Royce fit new Heat exchangers to its
Trent 700.
Ice has been a punching bag of late..... Welcome to the devil you don't know, ignore the devil you do...
Jet aircraft have been flying up to 60,000 feet everywhere on the globe for sixty years....funny how we need to know more about water ice at 35,000. Are pitot tubes on ETOPS a/c especially susceptible to ice? So one would think...