Embraer EMB145 Operation Manual page 1631

CREW
AWARENESS
MODE 2B
Mode 2B is selected when the flaps are in landing configuration or
when making an ILS approach with glide slope and localizer deviations
below 2 dots.
Minimum Terrain Clearance (MTC) for "TERRAIN TERRAIN"
message triggering:
− Minimum: 30 ft at 2038 ft/min of closure rate.
− Maximum:
− 789 ft at 3000 ft/min or greater of closure rate. This steady
value can also vary from 200 ft up to 600 ft for flaps set to
landing configuration.
If the airplane penetrates the Mode 2B envelope with both gear and
flaps in the landing configuration, the message "TERRAIN" is
sounded.
If the airplane penetrates the mode 2B envelope with either the
landing gear UP or flaps not in landing configuration will result in:
− Aural message "TERRAIN, TERRAIN" ; and
− "GPWS" warning message on EICAS for airplanes equipped with
GPWS; or
− Amber "GND PROX" indication on the PFD for airplanes equipped
with EGPWS.
If the airplane continues to penetrate the envelope, the aural message
switches to messages described below, until the condition is cleared:
− Aural message "WHOOP WHOOP PULL UP" and
warning messageon EICAS for airplanes equipped with GPWS; or
− Aural message "PULL UP" and red "PULL UP" indication on the
PFD for airplanes equipped with EGPWS.
Page
2-04-30
10
AIRPLANE
OPERATIONS
MANUAL
Code
01
"GPWS"
REVISION 38