How do I get rid of Guzman?

Hint 1 of 13:

Maybe a little fresh air would help you solve this problem.

Hint 2 of 13:

Press the call button and ask Guzman to open the door.

Hint 3 of 13:

On the other hand, maybe the fresh air was a bad idea.  Ask him to close the
door again.

Hint 4 of 13:

Do you see any way of getting rid of him?

Hint 5 of 13:

Guzman actually expects the handle to hold his weight.

Hint 6 of 13:

On a plane this old, that might be a bad idea.

Hint 7 of 13:

Especially if you helped it fall into disrepair.

Hint 8 of 13:

Loosen the nuts that are holding the handle onto the plane.

Hint 9 of 13:

The pipe wrench in the tool box will do the trick.

Hint 10 of 13:

Once you lubricate the nuts.

Hint 11 of 13:

With the naval jelly.