A volcanic eruption in Bali is threatening to halt flights both in to and out of the area.
The issue with volcanos isn’t the eruption itself, but the multitude of gases and debris that is scattered into the air.
How does this effect flight, you ask?
Well the gases and debris basically suffocate turbojet engines, and have a similar if not slower on piston and turboprop aircraft.
Want to know more?
Volcanic ash is hard and abrasive, and can quickly cause significant wear to propellers and turbocompressor blades, and scratch cockpit windows, impairing visibility.
The ash contaminates fuel and water systems, jams gears, and make engines flameout.
The previously mentioned particles have a low melting point, so they melt in the combustion chamber and the ceramic mass then sticks to turbine blades, fuel nozzles, and combustors— turning your aircrafts blades into clay! Which will ultimately lead to total engine failure.
Ash can also contaminate the cabin and damage avionics
Follow the linked article for more information on this specific event, http://www.bbc.co.uk/news/world-asia-42126284