These small, sometimes purple, cloth tags are hooked up to parts of plane, comparable to covers, pins, and different security gadgets, that should be eliminated earlier than the plane is operational. They function a outstanding visible reminder to floor crews and pilots performing pre-flight checks. A standard instance is their use on pitot tube covers, which defend these crucial airspeed sensors from particles and bugs whereas the plane is on the bottom.
Their vibrant coloration and clear wording contribute considerably to flight security by stopping probably catastrophic oversights. Traditionally, these tags developed from less complicated flags or streamers, changing into standardized for improved readability and effectiveness. This standardization performs an important function in constant communication throughout totally different plane sorts and operational environments, minimizing the chance of human error.