General Authority of Civil Aviation (GACA) Aeronautical Information Publication (AIP) Practice Exam

What remains operational after a forward cargo fire switch is engaged and a fire is extinguished?

1. The cargo heat system

2. The AFT cargo discharge system

3. The crew rest area ventilation system

4. The passenger cabin pressure system

The correct answer is: The AFT cargo discharge system

When the forward cargo fire switch is engaged and the fire is extinguished, the AFT cargo discharge system remains operational. This function is critical for aircraft safety, especially in managing potential risks related to any latent heat or smoke that may still exist in the aft cargo area. The engagement of the forward cargo fire switch generally activates systems to combat the fire and may disable certain functions in the affected areas to prevent further complications. However, the AFT cargo discharge system is designed to continue operating, ensuring that any smoke or residual fire hazards from the forward cargo compartment can be managed effectively. This capability provides an essential safety net for the crew and passengers, allowing for continued monitoring and addressing of any fire-related issues that might arise. Other systems listed would typically be disabled or not remain operational after the engagement of the forward cargo fire switch due to their involvement in the affected area or to prevent complications in a compromised environment.