Section 2 System Overview
1
st
Ed Nov 2018
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
2-25
Table 2-4: Time-Critical Warning and Caution Alerts
Visual Alert
Voice Alert
“--” No Voice Alert
Condition
** No time delay
--
Annunciates horizon
synchronization function is
engaged. Annunciation does not
flash nor illuminate a master
visual alert, because it is not
really a caution but instead is a
pilot selection annunciation.
Time-critical warning and caution alerts are prioritized so only one alert at
a time is active:
GPWS Mode 1 Warning
GPWS Mode 2 Warning
TAWS
FLTA
Warning
Obstruction
Warning
TAWS
FLTA
Caution
Obstruction
Caution
GPWS Mode 4-1
GPWS Mode 4-2
GPWS Mode 4-3
GPWS Mode 1 Caution
GPWS Mode 2 Caution
GPWS Mode 3
GPWS Mode 5 Warning
GPWS Mode 5 Caution
Check Gear
Traffic Warning (Resolution
Advisory)
Traffic Caution (Traffic Advisory)
Horizon Synchronization
Caution
2.5.2 Warning
Alerts
Figure 2-11: Warning Alerts