How does the author use foreshadowing in Airframe?

In the section titled, Monday, the investigation into Flight 545, and the reader learns a great deal of information about avionics. The most important information learned in this chapter is about slats and slat deployment, as well as the fact that the N-22 has a history of accidental slat deployment. Although the problem was believed to have been resolved four years before, passenger interviews lead Casey to believe that slats deployment was a part of the incident on board Flight 545. Because of Casey's concern, the reader gets the impression that this is an answer Norton doesn't want to hear. If the slats deployed accidentally, it could end the China sale. This also adds tension to the plot development and leaves the reader worried what
will happen if these concerns become public, possibly foreshadowing this real possibility. Finally, Casey goes home and discovers a security detail has been dispatched to watch the homes of all the members of the investigative team. Casey and the reader both wonder if this means someone expects trouble.