According to the stabilized approach concept, what is the maximum acceptable descent rate during the final stages of both precision and nonprecision approaches?

The maximum acceptable descent rate during the final stages of both precision and nonprecision approaches is 1,000 feet per minute (fpm). This guideline is established to ensure that pilots maintain control of the aircraft and keep an appropriate rate of descent, particularly as they approach the runway.

In the final stages of an approach, it is crucial for pilots to manage their descent rate carefully to avoid excessive vertical speed that could lead to difficulties in maintaining stable flight, particularly in adverse weather conditions or when the aircraft is heavily loaded. A descent rate of 1,000 fpm allows for a stable approach, enabling the pilot to make necessary adjustments to speed, configuration, and altitude as the aircraft descends to the landing threshold.

Furthermore, this rate aligns with best practices in aviation safety and operational efficiency, ensuring that pilots have enough time to respond to changes in the aircraft’s performance or external conditions without risking a destabilized approach.