Which key individuals should be alerted first when a security threat is suspected?

• A. Notify the purser/lead, then contact the flight deck or ground security; use the aircraft's communication system to escalate.
• B. Immediately alert passengers to the threat via the PA system.
• C. Proceed to evacuate the aircraft without informing the purser.
• D. Ignore the threat and continue service until landing.

Answer: (A)

When a security threat is suspected, the priority is to escalate through the proper chain of command so the incident can be managed safely and quickly. The cabing supervisor—the purser or lead—should be alerted first because they are the designated in‑cabin agent who coordinates with the flight deck and security. They can assess the situation, mobilize the right resources, and communicate with the crew and authorities in a controlled way. Using the aircraft’s communication system to alert the flight deck or ground security ensures the threat is reported officially and promptly, with a clear record and coordinated response.

This approach avoids creating panic among passengers, which could hinder safety actions. Alerting passengers via the PA would spread fear and complicate response efforts. Evacuating without the purser’s coordination could lead to chaotic and unsafe situations, and ignoring the threat is simply not acceptable. The trained procedure is to inform the purser/lead first and have them escalate to the flight deck and security.