Board the Zeppelin (P).
Use Matthew on the Myriapod (Q).
Examine the CROWBAR (R) and take it.
Examine the diagram and take the GEAR 1/3 (S).
Examine the door; take the CRANK HANDLE (T).
Use the CROWBAR on the large crate and examine it to trigger a puzzle (U).
Move the items to unhook the net.
See screenshot for solution (V).
Take the unhooked CARGO NET.