What happens...

[Karl]

....if an airline does not have enough cash to pay for a new aircraft on delivery date?

What happens to the deposit?

[Sanabas]

You still pay for the newplane, and just go deeper into negative cash. It's maintenance, loan payments & marketing that get stopped when you're too deep into negative cash. Salaries, new plane deliveries, etc, still get paid.

[Karl]

Thanks.  Good to know.