Which of the following is NOT part of the SOS protocol?

The option that is not part of the SOS protocol is gathering personal belongings. The SOS protocol is focused on ensuring the safety of passengers during an emergency situation, which prioritizes quick evacuation and adherence to instructions from flight attendants.

In emergency situations, passengers should remain focused on their escape routes and follow the guidance of flight attendants who are trained to handle such scenarios. Gathering personal belongings can create unnecessary delays and distractions that could jeopardize personal safety and the safety of others.

The other options, such as checking for nearby exits, following the flight attendants' lead, and using life jackets, are all crucial components of the protocol designed to maximize safety and ensure that passengers are prepared for evacuation or for using safety equipment when required. The emphasis is always on moving swiftly and safely rather than on retrieving items that can be replaced.