Regulatory Standards - Honeywell Bendix/King KTA970 Pilot's Manual

KTA 970/KMH 980 Pilot's Guide EGPWS Introduction
Should the aircraft fly into danger where a conflict with terrain or a known
obstacle is imminent, the system will provide both visual and aural alerts
and warnings to the pilot. The system also provides alerts and warnings
for excessive rates of descent and inadvertent descents or altitude loss
after take-off.
The system provides an aural altitude callout when 500 feet above run-
way elevation during a landing approach, and also monitors altimeter
systems in the aircraft to provide alerts for possible altimeter malfunc-
tions or errors.
Some GA-EGPWS units also provide low gear and flap alerting as well
as an excessive bank angle call-out, if configured.
Pilot reactions to alerts and warnings differ according to weather condi-
tions, visibility, type of warning, phase of flight and aircraft performance
considerations. Pilots should be thoroughly familiar with FAA, company,
or other approved operational procedures as required by their aircraft
and type of operation. Pilots should train to react properly to GA-
EGPWS alerts and warnings just as one would train to react to an aircraft
stall, engine failure or any other emergency situation.

REGULATORY STANDARDS

The GA-EGPWS satisfies the requirements for Terrain Avoidance &
Warning System (TAWS) as defined by FAA TSO-C151b, Class B and
C, when installed in aircraft in accordance with approved procedures.
(See System Installation Manual).
NOTE: All aircraft, which are required by Federal Aviation Regulations to
have a Terrain Awareness and Warning System complying with TSO
151b Class B, must be configured with the Class B warning and audio
configurations.
The GA-EGPWS may also be installed in aircraft that do not require FAA
approved TAWS systems, and may be utilized with an optional set of
alerting and warning parameters that are designed especially for smaller
piston aircraft and their normal flight characteristics. The FAA has now
designated these operational TAWS requirements, under TSO, as the
Class C curves. These "optional alerting and warning parameters", now
Class C operations, are set into the computer via the Configuration
Module during installation, and require no pilot interaction.
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