Which airplanes must have a ground proximity warning glide slope deviation alerting system?

The requirement for a ground proximity warning glide slope deviation alerting system applies to all turbine-powered airplanes. This system is critical for enhancing safety during operations, particularly during approaches to landing, where precise glide slope adherence is vital. By alerting pilots to deviations from the glide slope, this technology helps prevent situations that could lead to controlled flight into terrain or other hazardous conditions.

Inherent to the designs and operational protocols of turbine-powered aircraft, the implementation of this alerting system aims to address the complexities and safety considerations associated with high-speed and high-altitude flight. As all turbine-powered airplanes are designed to operate in environments where such alerts may be necessary, having this alerting system is crucial for improving situational awareness and enhancing the margin of safety during flight operations.