What are five things you need to survive in a plane crash?

To survive a plane crash, you need a reliable source of water for hydration, non-perishable food for energy, a first aid kit for treating injuries, a means of communication to signal for help, and appropriate clothing or insulation to protect against the elements. Additionally, familiarity with emergency procedures and the use of safety equipment can greatly enhance your chances of survival. Staying calm and assessing your surroundings are also crucial in such a crisis.