Where are the cargo smoke detectors located?

• A. Only in the forward cargo
• B. Only in the aft cargo
• C. Both forward and aft cargo
• D. Only in the cockpit

Answer: (C)

Cargo smoke detection must cover all cargo holds to give early warning no matter where smoke starts. Detectors are installed in both the forward and the aft cargo compartments, so a fire in either hold is detected quickly. If there were only one detector location, smoke in the other hold could go unnoticed until it becomes a major issue. The system typically links each detector to the cockpit annunciation so the crew can see which hold is affected and respond promptly. So, detectors are located in both forward and aft cargo compartments.