TAP036: A320 EGPWS

The Ground Proximity Warning System (GPWS) generates aural and visual warnings, when one of the following conditions occurs between radio heights 30 ft and 2 450 ft Mode 1: Excessive rate of descent Mode 2: Excessive terrain closure rate Mode 4: Unsafe terrain clearance when not in landing configuration Mode 5: Too far below glideslope. A Terrain Awareness Display (TAD), which predicts the terrain conflict, and displays the terrain on the ND. A Terrain Clearance Floor (TCF), which improves the low terrain warning during landing. On newer aircraft the GPWS occurs between radio heights 10 ft and 2 450 ft. For more info see FCOM DSC-SURV-040