On Dec 27, 1:55*pm, wrote:

So it doesn't roll away in the wind all on it's own with no one on board?

Or, if they were expecting to tow it in the immediate future, where were
the chocks to make sure it doesn't roll away in the wind all on it's own
until they got around to towing it?

While its possible that someone does it, I'm not aware of any operator
that sets the brake on aircraft when its not occupied. Usually chalks
work just fine and are easier to move when you need to tow. In smaller
aircraft there are other reasons to avoid setting the brake, like
changes in outside pressure could burst the brake seals.

-Robert