[turbohedgehog]

At the time, there was a zero tolerance policy for volcanic ash with jet engines. However there are now upper bounds on the density of ash allowed, so if an Eyjafjallajökull-like eruption happened again today, not as much air traffic would have to shut down.

[BrailleHunting]

People reading this might be interested in an Canadian industrial turbine repair shop YouTube channel: https://www.youtube.com/user/AgentJayZ

[arnarbi]

Katla has much more potential than Eyjafjallajökull.

https://en.wikipedia.org/wiki/Katla_(volcano)