What is one of the primary requirements for maintaining operational safety in oxygen systems?

One of the primary requirements for maintaining operational safety in oxygen systems is the need for frequent checks for leaks and blockages. Oxygen systems are critical for ensuring that crew and passengers have access to breathable air, especially at high altitudes where atmospheric pressure and oxygen availability are significantly reduced. Regular leak checks ensure that the system is functioning effectively and that oxygen is delivered as intended without any loss due to leaks. Additionally, blockages can prevent the proper flow of oxygen, potentially leading to hazardous conditions, especially in emergency situations. By routinely inspecting these systems for integrity and functionality, operators can mitigate risks and ensure that safety protocols are adhered to, thereby maintaining the reliability of oxygen supply when it is most needed.