What action should be taken if the SCBA does not function properly during an emergency situation?

In an emergency situation where a self-contained breathing apparatus (SCBA) is malfunctioning, the most effective course of action is to switch to a backup SCBA immediately. This is critical for maintaining the safety of the individual operating in a hazardous environment where breathable air may be compromised.

The SCBA is designed to protect firefighters from harmful smoke and toxic gases, and any malfunction can put their lives at significant risk. By switching to a backup unit, the firefighter can ensure that they have a reliable source of breathable air, allowing them to continue their operations effectively and safely.

Attempting to fix the malfunction on the spot can lead to wasted time and increased danger, as issues with breathing apparatus can often be complex and require specialized knowledge and tools to resolve. Continuing to use a faulty SCBA until the air runs out is also dangerous, as it could lead to sudden loss of oxygen and incapacitation. Reporting the issue after returning to safety, while important, does not address the immediate threat to the firefighter's safety during the incident.