Uncle Ron I know this is an old post, but looking closer at your pictures of the aircraft part. I can see that it reads "utility system" That system supplied hydraulic pressure to the landing gear,and brakes. The primary system runs the flight control surfaces. I worked aircraft hydraulics in the Air Force and as a civilian at Luke AFB. starting in 1969 to 2000.. That jet crash part was older than the ones I worked on. You discovered a real piece of history! Congrats!