Final answer:
The TERRAIN GRND PROX switchlight is a component in aircraft cockpits used to control and monitor the ground proximity warning system (GPWS) and terrain awareness and warning system (TAWS).
Step-by-step explanation:
The TERRAIN GRND PROX switchlight is a component found in aircraft cockpits, specifically in the Flight Management System (FMS) control panel. This switchlight is used to control and monitor the ground proximity warning system (GPWS) and terrain awareness and warning system (TAWS) of the aircraft.It enables pilots to enable or disable these safety systems, adjust sensitivity levels, and review configurations.
GPWS and TAWS are safety systems that provide pilots with warnings and alerts regarding the proximity of the aircraft to the ground and known terrain hazards, ensuring safe flight operations.
By operating the TERRAIN GRND PROX switchlight, pilots can enable or disable the GPWS and TAWS, adjust the sensitivity levels, and review various warning and alert configurations.