Final answer:
One suggestion to solve the problem of the aircraft body being charged during flight and needing to be discharged before landing is to use a process called earthing or grounding.
Step-by-step explanation:
To solve the problem of the aircraft body being charged during flight and needing to be discharged before landing, one suggestion is to use a process called earthing, or grounding. This involves connecting the aircraft body to the Earth's surface through a conductive path, such as a wire. By doing so, any excess charge on the aircraft body will be safely conducted to the ground, thus discharging it.