Mark V and Mark VII EGPWS Pilot's Guide
Monitors are operationally available anytime the EGPWS is
powered and the following conditions are met:
• The software for the Monitor functions have been loaded
• The aircraft is on or approaching an airport in the runway
• Monitors are functional (e.g., all external signals are
Monitor operational availability is integrated into the existing
Monitor Self-Test Audio Messages:
"Altimeter Monitor INOP"
"Approach Monitor INOP"
Rev H, August 2011
and enabled into an EGPWS (with software version -230-
230 (or later) and a minimum of Terrain Database version
454 if RAAS or any of the Stabilized Approach Monitors
are enabled, otherwise Terrain Database Version 435 or
later is required);
available and not faulted, GPS position accuracy meets
minimum requirements, there are no internal EGPWS
EGPWS fault monitoring and self-test functions. Consistent
with approved EGPWS self-test design, the loss of Monitor
functions is indicated on-ground only during an EGPWS self-
test. There is no automatic annunciation of the loss of Monitor
functionality. The audio self-test messages are as follows.
Altimeter Monitor is enabled but the function is
inoperative. Annunciated on ground during
Level 1 Self-Test.
Stabilized Approach Monitor is enabled but the
function is inoperative. Annunciated on ground
during Level 1 Self-Test.