What is the minimum altitude assigned to an aircraft flying a published approach procedure?

The minimum altitude assigned to an aircraft flying a published approach procedure is typically 1,000 feet Above Ground Level (AGL). This is a standard practice to ensure that aircraft operate at a safe altitude above the terrain and obstacles while executing an approach. The 1,000 feet AGL minimum provides a buffer that allows pilots to safely navigate through the approach phase without the risk of encountering obstacles that could lead to accidents.

When flying a published approach, pilots are expected to adhere to the established minimums detailed in the approach plates. These minimum altitudes are critical for maintaining safety, especially in areas with varied terrain or urban structures. The specified altitude aligns with regulations and guidelines aimed at ensuring safe separation from ground obstacles.

While lower altitudes such as 500 feet AGL may be suitable for some specific approach procedures, they are not the generalized minimum for all approaches. Therefore, 1,000 feet AGL serves as a common safety threshold to promote safe flying practices during the approach segment.