Airplane Flight Manual Supplement or Supplemental Flight Manual for the NGT-9000
Revision 4 Issue:
9/19/17
Page 20 of 27
Document Number L3-76AK-AFMS1
FAA Approved
Table 3-1: Troubleshooting for the Panel Mount NGT-9000
Symptom
Screen
Cause/Corrective Actions
Display indicator TRAFFIC
UNAVAILABLE (Amber text)
showing on traffic screen.
•
Indicates both
TAS/TCAS and ADS-B
traffic sources are not
available for a variety of
reasons: However, both
are not failed. If all
available traffic sources
are unavailable due to
failure, ‘Traffic Failed’ will
be indicated. This will be
the normal indication for
units on the ground with
no heading input.
(TAS
/TCAS
in standby).
Traffic
ADS-B is operational but heading and track are invalid or
GPS is failed. TAS/TCAS is in Standby. Transponder
Mode Control is “ON” which inhibits the display of
relative altitude so traffic is unavailable.
1. View the GPS page under the information button
and verify GPS is operational. If not, check the
GPS antenna location and ensure that the aircraft is
not inside the hangar or repeater is on if inside the
hangar, GPS antenna is exposed to clear sky.
2. Cycle power to the unit.
3. Check the GPS antenna for problems.
4. Check System Status Messages.
5. Check the Lynx MAT fault log.
Contact L3 Field Service before removal of unit.
•
Other aircraft are not
shown on the traffic
screen.
•
Ownship data is
displayed.
•
Alternate display shows
normal operation.
•
ADS-B Out Fail lamp is
OFF.
•
No Coverage Indicator is
showing on the display.
Traffic
The aircraft is not in an ADS-B (UAT / 1090ES)
coverage area, or the targets are not transmitting ADS-B
data, or the ground station is not transmitting TIS-B data.
1. The symptoms are normal if the target or ground
station is not transmitting TIS-B data.
2. The target or ground station needs to be within line-
of-site range.
Contact L3 Field Service before removal of unit.
•
Other aircraft are not
shown on the traffic
screen.
•
Ownship data may or
may not be displayed on
the weather screen.
•
MSG button on screen.
Traffic
Possible hardware problem with the unit.
1. Cycle power to the unit.
2. Check System Status Messages.
3. Check the Lynx MAT fault log.
Contact L3 Field Service before removal of unit.
•
Ownship is shown, but
no traffic is being
displayed.
•
ADS-B Out Fail lamp (if
installed) is OFF.
Traffic
Possible problem with the UAT/1090 antenna or RF
cables.
1. Cycle power to the unit.
2. Check cable connections.
3. Check System Status Messages.
4. Check the Lynx MAT fault log.
Contact L3 Field Service before removal of unit.
