Final answer:
Without the specific text from Linda Sue Park's work, we can only speculate that the description of the airplane seen by Salva might inform the reader about its design, technology, importance, and Salva's familiarity or unfamiliarity with such machines.
Step-by-step explanation:
The question seems to pertain to a description made by Linda Sue Park, possibly in connection with the novel "A Long Walk to Water". However, without the specific text reference, we are unable to provide the exact way Linda Sue Park describes the airplane seen by Salva, or the implications that description has for the airplane itself.
Typically, an author's description of an airplane or any other object can reveal a lot about the technology, time period, and cultural significance within the story. For example, a detailed and technical description might suggest the plane is modern and complex, whereas a more simple or fearful description may reveal the observer's unfamiliarity with such machines.