An "Approach Procedure" is a set of predefined steps that pilots follow to safely land an aircraft at an airport. These procedures are designed to guide pilots from the en-route phase to the final approach, ensuring they maintain the correct altitude, speed, and alignment with the runway. Approach procedures can vary based on factors like weather conditions and airport layout. They often include specific instructions for using navigational aids, such as VOR or ILS, to help pilots accurately navigate during the approach phase. Following these procedures is crucial for maintaining safety and efficiency in air traffic operations.