Ground Proximity Warning System (GPWS)
Ground Proximity System Test (SYS TEST) Switch
Push – momentarily on the ground:
BELOW G/S and GPWS INOP lights illuminate.
TERR FAIL and TERR TEST show on navigation displays.
PULL UP and WINDSHEAR alerts illuminate.
GLIDE SLOPE, PULL UP, and WINDSHEAR aurals sound.
T
errain display test pattern shows on navigation displays.
T
errain caution aural sounds and TERRAIN caution message
shows on
navigation displays.