These brightly coloured tags, usually crimson and bearing the stark warning, serve a essential security operate in aviation. They act as reminders to floor crews to take away short-term security units put in on plane previous to flight. These units may embody covers defending pitot tubes (which measure airspeed), engine intakes, or management surfaces. Leaving these safeguards in place throughout flight might have catastrophic penalties, impacting plane efficiency and management.
Their presence ensures the plane is prepared for flight, highlighting the significance of meticulous pre-flight checks. This straightforward but efficient system prevents doubtlessly disastrous oversights, contributing considerably to aviation security. The observe originated within the early days of aviation as plane techniques grew to become extra advanced and the necessity for short-term security units elevated.