Normal Procedures; Ga-Egpws System Self-Test - Honeywell Bendix/King KGP 560 Pilot's Manual

NORMAL PROCEDURES

GA-EGPWS SYSTEM SELF-TEST

Prior to flight, the system should be tested for proper operation.
Normally, this is done by the pilot during the BEFORE TAKE-OFF check.
All aircraft power and systems should be up and running, and the GA-
EGPWS "Not Available" annunciator lamp should be off.
NOTE: Because the system requires GPS information to operate, it may
be several minutes after power-up before the aircraft GPS system sup-
plies accurate information to the KGP 560/860. If the internal GPS card
is used to supply position information, it may take additional time for
satellite acquisition depending upon the frequency of use of the system.
The internal GPS card requires a current almanac to locate GPS satellite
positions. This almanac can take several minutes to load. When an
accurate GPS position is acquired and the rest of the GA-EGPWS
system is available, the "NOT AVAILABLE" lamp will extinguish.
To perform a normal KGP 560/860 GA-EGPWS Self-Test:
• Press the Self-Test switch. When a Self-Test is initiated, the GA-
EGPWS first checks for any configuration (installation or database)
errors. If any are detected, it is audibly enunciated and the test is ter-
minated. If none are detected, the test continues through a sequence
resulting in turning on and off all system annunciators, enunciating
specific audio messages, and if enabled, displaying a video test pat-
tern on the terrain display. Any functions determined inoperative are
also enunciated. The Self-Test terminates automatically at its conclu-
sion.
The following is a description of the expected results of a typical level
1 Self-Test. Actual annunciation nomenclature and sequence may
differ depending on the installation.
• Observe that the amber "Not Available" and red "Warning" annunci-
ator lamps associated with the system illuminate.
• Observe that the voice callout "EGPWS SYSTEM, OK" is heard.
• Observe that the red "Warning" annunciator lamp extinguishes, and
the amber "Caution" annunciator lamp illuminates.
• Observe that the GA-EGPWS Terrain Display shows the Test
Pattern.
• Observe that the Terrain Display Test Pattern is removed.
• Observe that the amber "Caution" and amber "Not Available" annunci-
ator lamps associated with the system extinguish.
Rev 6 Jan/2005
23
KGP 560/860 Pilot's Guide
Normal Procedures