Pd4106 leaning to the right

[matzeinusa]

When the air pressure is gone I.e.  BUS is parked for a while it leans to the right.
Why is that and how can I fix that?
Thanks!
Matt

[gumpy]

When the air pressure is gone I.e.  BUS is parked for a while it leans to the right.
Why is that and how can I fix that?
Thanks!
Matt

Because the air leaked out of the air suspension on that side.

Find and fix the air leak.

Suggest you start with the air bags. Soap them down with a solution of Dawn and water. Look for air bubbles.
Go from there, depending on where you find bubbles.