What indicator must the pilot repeat three times during a distress condition?

In aviation communication, the term "Mayday" is universally recognized as the standard distress signal. When a pilot finds themselves in a distress condition, it is crucial to convey the urgency and seriousness of the situation to Air Traffic Control and other nearby aircraft. The repetition of "Mayday" three times serves both to ensure clarity and to help capture immediate attention, effectively communicating that there is a grave emergency. This practice is rooted in protocol and safety measures designed to enhance situational awareness and prompt a swift response from those monitoring communications. The repetition acts as a strong indicator of distress, making it distinct and unmistakable in the often-busy air traffic communications environment.