What is the primary function of the First Aid Kit (FAK) on board?

The primary function of the First Aid Kit (FAK) on board is to provide essential items required to perform first aid on passengers. This kit is designed to address medical emergencies that may arise during a flight, ensuring that crew members can respond effectively to a variety of health-related incidents. The contents typically include bandages, antiseptics, scissors, and other critical supplies that enable trained personnel to manage injuries or medical issues until further assistance can be obtained upon landing.

The other options do not align with the fundamental purpose of the First Aid Kit. While medications for cabin crew, entertainment systems, and safety instructions are all important aspects of aviation safety and experience, they do not pertain to the immediacy of medical aid needed in the event of an in-flight emergency. The focus of the FAK is specifically on first aid, making it an indispensable resource for passenger safety in the air.