After a non-decompression dive, how long should a pilot wait before flying to 8000 ft MSL?

When considering the necessary wait time for a pilot to fly after a non-decompression dive, the recommendation is to wait at least 12 hours before ascending to an altitude of 8,000 feet MSL. This guideline is established to allow the nitrogen that has dissolved in the body during the dive sufficient time to be safely eliminated.

During a dive, especially in the case of non-decompression dives, nitrogen is absorbed into the body's tissues due to the increased pressure. If a diver ascends too quickly or flies too soon after diving, the nitrogen can form bubbles in the bloodstream, leading to decompression sickness, commonly known as "the bends."

The 12-hour limitation provides an important safety margin that decreases the risk of such complications. This waiting period is customary and recognized among aviation and diving organizations to ensure a safe transition from diving to flying, thus underscoring the importance of adhering to these guidelines in order to prioritize pilot and passenger safety.