FOD Barriers are crucial for protecting which items in aviation?

FOD barriers are designed to protect critical components of an aircraft from foreign object debris that can potentially cause damage or malfunction. When it comes to hoses, cables, and ducts, these components are particularly vulnerable to FOD, as any foreign object that comes into contact with them can lead to serious operational issues.

For instance, hoses could become compromised, leading to leaks; cables may be disrupted, affecting control and functionality; and ducts can be obstructed, which may impact airflow or even lead to engine failure. FOD barriers help to minimize the risk of such occurrences by keeping the areas where these components are located clean and free from debris. Therefore, the importance of FOD barriers is highlighted by the need to maintain the integrity and safety of these essential aircraft systems.

Other options, while they may relate to the aircraft and its operation, do not capture the primary focus of FOD barriers as effectively as hoses, cables, and ducts do. Aircraft manuals, passenger luggage, and even aircraft engines are not the direct focus of FOD protection strategies, which are primarily designed to safeguard the more sensitive and operationally critical items within an aircraft.