IFD400 Series Pilot Guide
3-42 Map Subsystem
HTAWS self-test is in progress
HTAWS is turned off, aircraft is hovering,
aircraft is within an FLTA exclusion area, or
aircraft is on ground
HTAWS is in reduced protection mode
HTAWS SELF-TEST
HTAWS self-test is conducted automatically at power up. While the
self-test is running, external HTAWS related annunciators are
illuminated and the TAWS page will show “TAWS Self-Test In
Progress”. Whether the self-test passed or failed will be annunciated
using an aural message.
If HTAWS had passed self-test and then fails at some point later in
the power cycle, a “bing-bong” chime is issued along with a CAS
message.
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