If the SCBA malfunctions while operating inside a structure, what action is required?

• A. Issue a MAYDAY
• B. Return to entry point
• C. Call MAYDAY
• D. Attempt to repair SCBA on scene

Answer: (C)

When an SCBA malfunctions inside a structure, the immediate action is to declare a MAYDAY over the radio. This distress call signals that you are in life-threatening danger due to loss of breathing air and requires urgent rescue. By calling MAYDAY, you alert your team and incident command to your exact location and need for assistance, enabling responders to organize a rapid rescue rather than wasting time attempting repairs on-scene, which could worsen the danger. After initiating MAYDAY, follow your training: try to move to the nearest safe exit if possible, maintain radio contact, and let responders guide the rescue. Returning to the entry point or attempting a repair on-scene without escalating the alert could delay rescue and increase risk.