In the event of a suspected security concern during flight, who should you inform first?

• A. The flight deck and security
• B. The passengers
• C. The ground staff on board
• D. The maintenance crew

Answer: (A)

When a security concern is suspected during flight, informing the flight deck and security first is the essential step. The flight crew are responsible for aircraft safety and have the authority to assess the threat, coordinate with authorities on the ground, and implement the appropriate security procedures, including any needed diversions or changes to the flight plan. Communicating with the flight deck first ensures a controlled, coordinated response rather than actions taken in isolation.

Sharing details with passengers or other on‑board staff before the flight deck can provoke panic and hinder the security response, while ground staff on board or maintenance crew do not have the authority to manage in-flight security threats. They should be kept informed as directed by the flight deck, not contacted first.