I suspect that the liquid being referred to is propably glue or resin used in the initial construction rather than some core material breaking down into a liquid.
Whereas it looks freightening lets not forget that we have had significant failings in the past with more traditional materials and, when you are taking strengths of materials to the edges of thier envelopes in order to squeeze the last scrap of performance, economy and efficiency out of something, things will occassionally fail.
We have similar situations in the marine world. When I first went to sea and looked after large slow speed diesel engines if anything went wrong you had plenty of time to do something about it and avert a disaster. Nowadays with medium speed engines with all the internals trimmed down to the minimum, cooling water relying on flow rather than volume and every parameter of the engine design taken closer to the edge in the search of increased performance and efficiency, when something goes wrong your best course of action is duck! |