IFD500 Series Pilot Guide
4-48 Map Subsystem
TAWS
When the Terrain Awareness and Warning System (TAWS) option is
enabled and the HELO option is not enabled (see page 5-88), the
IFD provides a TAWS-B function. TAWS-B does not require any
external equipment, is always running in the background, and does
not have a dedicated display page. In addition to the previously
described Terrain Awareness features, TAWS-B contains the
following sub-functions:
Premature Descent Alert (PDA) – this function is designed
to alert when the aircraft is hazardously below the normal
approach path for the nearest runway at either the origin or
destination airport
Excessive Rates of Descent (EDR) – this function is
designed to alert when the aircraft is experiencing excessive
rates of descent given the current AGL altitude. The alert
can be generated during any phase of flight
Negative Climb Rate (NCR) or Altitude Loss After
Takeoff/Go-Around – this function is designed to alert when
the aircraft develops a negative climb rate immediately after
takeoff or go-around or when an altitude loss is detected in
that phase
TAWS-B has several associated aural alerts. With the exception of
altitude callouts, the aural alerts are associated with CAS messages
(see page 7-2). The priority of TAWS-B alerts is illustrated below,
prioritized from highest to lowest.
Per Setup Option (see page 5-71)
Per Setup Option (see page 5-71)
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