Which GPWS mode is associated with Too far below glideslope?

Which GPWS mode is associated with Too far below glideslope?

• A. Mode 5
• B. Mode 1
• C. Mode 2
• D. Mode 4

Answer: (A)

Staying on the published glide path during an approach is the situation this alert targets. When the aircraft is significantly below the glide slope and continues to descend, the GPWS detects a large deviation from the glide path and issues the glide-slope deviation warning. This specific alert is designed to prompt you to correct by reducing descent and re-intercepting the glide path, typically by pitching up and adjusting thrust as needed. Other GPWS alerts address different problems, like an excessive descent rate or imminent terrain proximity, so they don’t indicate being too far below the glide slope.

Staying on the published glide path during an approach is the situation this alert targets. When the aircraft is significantly below the glide slope and continues to descend, the GPWS detects a large deviation from the glide path and issues the glide-slope deviation warning. This specific alert is designed to prompt you to correct by reducing descent and re-intercepting the glide path, typically by pitching up and adjusting thrust as needed. Other GPWS alerts address different problems, like an excessive descent rate or imminent terrain proximity, so they don’t indicate being too far below the glide slope.