If cabin altitude exceeds a certain height, what is required before further flight?

When cabin altitude exceeds a certain threshold, it's critical to ensure the safety and health of the flight crew and passengers. This is because higher cabin altitudes can lead to hypoxia and other physiological effects that can significantly impair performance and decision-making abilities.

The requirement for an evaluation by a flight surgeon or aviation medical authority is grounded in the need to assess any potential medical issues resulting from the elevated cabin altitude. This evaluation helps determine if the crew is fit to continue the flight or if remedial actions are needed to ensure the well-being of everyone on board.

In the context of flight regulations and best practices, having a qualified medical authority assess the situation is essential. They can provide insights on whether the crew is at risk and if any medical interventions or preparations are necessary. This ensures that decisions regarding flight operations prioritize safety and comply with aviation standards and protocols.