Students will learn about pressurization systems, bleed air heating, aircraft instrument cooling, exhaust heat exchangers, vapor-cycle systems, and air-cycle systems and components. They will identify and mitigate risks associated with oxygen system maintenance, recovery of vapor-cycle refrigerant, and maintenance of combustion heaters. Students will inspect, purge, and service an oxygen system, locate and troubleshoot a combustion heater, and clean and inspect an outflow valve for a pressurization system.