Installation Manual

Table Of Contents
Lynx NGT-9000
Installation Manual
0040-17001-01 (Revision W) Maintenance Page 4-7
Table 4-1: Troubleshooting The Panel Mount NGT-9000
SYMPTOM
SCREEN
CAUSE/CORRECTIVE ACTIONS
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.
3. Contact ACSS 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 MPC (MAT) fault log.
4. Contact ACSS Field Service before removal of unit.
Ownship is shown, but no
traffic is being displayed.
ADS-
B Out Fail lamp 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 MPC (MAT) fault log.
5. Contact ACSS Field Service before removal of unit.
The traffic symbols on the traffic
display are non-directional
(diamond shape).
Traffic Non-directional traffic symbols on the traffic display is due to
one of the following reasons:
1. The traffic information that is being received by the unit
does not have directional data. The unit continues to
transmit non-directional data to the traffic display.
Note - TAS/TCAS traffic is not displayed as directional.
A TAS/TCAS and ADS-B correlated target will use the
ADS-B/TIS-B directional information.
2. An alternate (secondary STIF) traffic display does not
support the DTIF data format necessary to show
directional data provided by ADS-B.
Traffic display is working
correctly, but some aircraft are
not showing up on the display.
Traffic Lack of data as described below:
1. The ADS-B In requires other aircraft to be equipped
with ADS-B Out.
2. The TIS-B and ADS-R services are supported when in
range of ground stations and are providing the service.
3. If receiving the TIS-B service, but the Mode C and
Mode S transponder equipped aircraft that do not
provide altitude information are not seen on the traffic
display.
4. If receiving the TIS-B service, but aircraft not equipped
with a transponder, or equipped with a Mode A
transponder are not part of the TISB data and will not
be seen on the traffic display. Refer to the NGT-9000
Pilot guide for more information regarding what traffic
can be displayed.