Q1: Are there fire-fighting equipment on the plane? If so, of what form?
Q2: How big is the hydraulic piston you're talking about? If there are hydraulic pistons, then I think a primitive steam engine might be possible using them?
Q3: Are there any tools that you'd expect to find on a plane in the normal course of events? I'm assuming there aren't any - except for what the AMT is bringing with her to fix a 757. A hacksaw is going to be vitally important to their future...
I'm here at the Smithsonian and there is a museum which shows all sorts of old steam generators, electrical generators and early inventions. Good material!