190-01717-B1
G500/G600 TXi Part 23 AML STC Maintenance Manual
Rev. 1
Page 4-27
Figure 4-18 Terrain Alert Message Troubleshooting
Terrain/TA W S A lert
M essages
If fault still exists ,
contact G arm in.
T A W S FA IL
A udio Failed
O R
D atabase error
O R
Internal failure
See external
TA W S unit m anual
for troubleshooting
instructions
C au se
V erify audio
system is online
and terrain
database is loaded
V erify terrain
alerting
configuration
R eload Terrain
database
V erify prim ary
G PS is on and has
a clear view of the
sky
Inspect G P S
antenna and w iring
C orrective
A ction
TA W S N /A
C au se
G D U is operating
from backup G PS
O R
Prim ary G PS is not
receiving a signal
C orrective
A ction
E xt. TA W S
Fail
C orrective
A ction
S ee external
TAW S unit m anual
for troubleshooting
instructions
E xt. TA W S
N /A
C orrective
A ction
B ackup G PS is active
O R
N o P rim ary G PS signal
O R
O utside database region
TE R N /A
C ause
C orrective
A ction
D atabase corrupted
or m issing
O R
Internal failure
R eload terrain
database
V erify terrain
database is loaded
and current.
TE R FA IL
C au se
C orrective
A ction
TAW S /TER config not set
O R
External TAW S and G D U
m ism atch (rotorcraft /
fixed-w ing)
C heck TA W S /
Terrain
configuration
settings
Verify E xternal
TAW S and G D U
have the sam e
aircraft type
configured
S ervice
T A W S .
Invalid
C onfig.
C orrective
A ction
V erify prim ary
G PS is on and has
a clear view of the
sky
Inspect G P S
antenna and w iring
Verify Terrain
database coverage
M aintenance
Log M essage