What is the purpose of removing pins or badges before entering the flight line?

The purpose of removing pins or badges before entering the flight line is to prevent foreign object debris. Items such as pins, badges, or any accessories can inadvertently fall off and become a hazard on the flight line, where they could interfere with aircraft operations or damage sensitive equipment. The presence of foreign objects can lead to serious safety risks, including potential incidents during aircraft movement, takeoff, or landing.

In high-stakes environments such as a flight line, maintaining safety is paramount, and the removal of loose items is a key measure to minimize risks associated with debris that could affect the aircraft or personnel working in the area. This practice is part of a broader safety protocol designed to ensure that the operational environment remains as secure and controlled as possible.