In this video, an Alaska Volcano Observatory scientist discusses what happened to that plane.
https://youtu.be/-vFjfinwHxE&rel=0
And here is that 2010 video again, showing what can happen when jet engines and volcanic ash mix.
https://youtu.be/3JtCewoqnzA&rel=0
Of note, a few months after KLM 867’s close call, Redoubt did this:
Volcanoes look all cute and steamy and chimney-like, until suddenly — apocalypse! (Image: J. Warren/Alaska Volcano Observatory)
Fortunately, at the time of writing Mount Redoubt is asleep.
And volcanic ash advisory centers are now a thing.
Featured image: Bauhaus345, via Wikimedia, CC BY-SA 3.O.
Flight To Wonder 