What precaution should be taken regarding personnel near overhead structures during an aircraft incident?

Establishing a safe distance from overhead structures during an aircraft incident is critical for ensuring the safety of personnel. Overhead structures can pose significant hazards, especially in situations involving aircraft incidents where there may be a risk of debris falling or structural failure. By maintaining a safe distance from these structures, personnel can minimize the risk of injury from falling objects or unexpected collapse. This precaution allows for a safer operational environment where emergency responders can focus on managing the incident without unnecessary risk to themselves.

Other options, while they may have relevance in specific contexts, do not address the immediate and critical concern of overhead hazards presented by structures in the vicinity of an aircraft incident. Considering the nature of aircraft incidents, maintaining a safe distance is the most prudent and effective precaution to ensure the safety of all personnel involved.