Just watching the Icelandic president saying 'this eruption is a small reharsal of the Katla eruption......I'm not saying if but when.....it's time to start preparing for the katla eruption.'
let's be honest ladies and gentlemen. We don't know what the effects of these volcanic events are. I think most people will agree that a single flight in these ash cloud events of the last few day will probably not cause an instant engine failure. But how much will these ash clouds reduce the redundancies of an engine's life. Say a normal inspection period of a part is once every 100 flight hours. What if these ash clouds now cause that part to fail between these inspections. Normally part A will fail every 500 hours so needs to be inspected every 100 hours. However microscopic abraisive particles make it highly likely that said part may fail in 100 hours time. We're just eroding those levels of safety.
Just my tupneth worth