What term is used when a firefighter goes down, is lost or becomes trapped?

The term used when a firefighter goes down, is lost, or becomes trapped is "Mayday." In firefighting and emergency response, a Mayday call signifies that an individual is in a life-threatening situation and requires immediate assistance. This term is universally recognized in emergency services and is crucial for signaling that urgent action is necessary to secure the safety of the downed firefighter.

The use of "Mayday" triggers an immediate response from fellow firefighters and emergency personnel, prompting them to initiate a rescue operation quickly. It is critical for ensuring that the necessary resources and support are mobilized without delay, reinforcing the importance of this term in maintaining the safety of firefighters during operations.

Other terms like Emergency Alert or Distress Call may convey a need for assistance, but they lack the specific urgency and protocol associated with Mayday calls. Rescue Signal refers more generally to a way of indicating a need for help but does not encompass the specific risks and urgency inherent in a firefighter's need for immediate rescue.