Which condition is an example of a fire safety deficiency (FSD)?

• A. A circuit breaker that is malfunctioning
• B. Combustible materials that are improperly stored
• C. An open container of gasoline
• D. An exit light that is burned out

Answer: (D)

Fire safety deficiency means a condition that directly undermines life-safety systems or means of egress during an emergency. An exit light that is burned out fails to illuminate the exits, so occupants cannot clearly see routes to safety when they most need to—during a fire or power outage. This directly compromises a essential life-safety feature, making it an FSD.

The other scenarios describe hazards or risks but don't indicate a malfunction or failure of a required life-safety system in the same direct way. A malfunctioning circuit breaker is an electrical issue that could lead to a fire risk, but the description doesn’t specify a failure of a life-safety system. Improperly stored combustibles and an open container of gasoline are fire hazards related to storage and ignition risk; they are serious, but they are not in themselves failures of the building’s fire protection or means-of-egress systems.