If a suspicious substance or package is found on board, what should the cabin crew do?

When a suspicious substance or package is found on board an aircraft, it is critical for the cabin crew to prioritize safety and follow proper protocols. The correct procedure involves not moving or touching the item, as it may pose a risk to the safety of the aircraft, passengers, and crew. By advising the Pilot in Command (PIC) immediately, the cabin crew ensures that the situation is handled by trained professionals who can assess the threat level and take appropriate action, such as contacting relevant authorities and determining the next steps to ensure passenger safety.

This response is grounded in safety protocols and emergency procedures that are essential in aviation contexts. Moving or touching the suspicious package, as suggested by other options, could inadvertently lead to a dangerous situation, while ignoring it would fail to address a potential threat. Proper reporting and escalation of concerns are vital components of cabin crew responsibilities when faced with any suspicious items on board.