Airplane Flight Manual Supplement or Supplemental Flight Manual for the NGT-9000
Revision 4 Issue:
9/19/17
Page 22 of 27
Document Number L3-76AK-AFMS1
FAA Approved
Table 3-1: Troubleshooting for the Panel Mount NGT-9000
Symptom
Screen
Cause/Corrective Actions
No TIS-B Coverage
Indicator
It is located on the traffic
screen next to the Zoom Out
button.
NOTE
: The indicator is
suppressed when
TAS/TCAS is operational
(i.e. installed, not failed, not
in standby).
Traffic
The No Coverage Indicator is shown on the traffic
display for the following reasons:
1. No TIS-B / ADS-R data available in the area
2. Aircraft is not within range of an ADS-B ground
station. Move aircraft in location where information
can be received.
3. UAT-In test failed (indicator seen after 60 seconds
of test failure)
4. 1090 Receiver failed
•
Try clearing the failure by cycling power to the
unit.
•
Check the L-Band antenna or cables for possible
errors.
•
If the problem continues, replacement of the L-
Band antenna or the unit may be required.
Contact L3 Field Service before removal.
Display indicator ON-GND
showing on transponder
screen.
Transponder
Transponder is operating in the on-ground mode.
1. This is a normal condition when the aircraft is on
ground.
2. If the indication is seen during flight. Contact L3
Field Service.
•
Display indicator XPDR
FAIL (Amber text)
showing on transponder
screen.
•
MSG button on screen.
Transponder
Transponder data is invalid. This indication is shown on
the transponder screen and alternate traffic screen.
1. Possible problem with internal hardware.
2. Cycle power to the unit.
3. Check System Status Messages.
4. Check the Lynx MAT fault log.
Contact L3 Field Service before removal of unit.
Pressure Altitude digits
replaced with amber
dashes.
Transponder
Invalid Pressure Altitude.
Note: Some altitude encoders may not provide pressure
altitude until after 1-3 minutes of operation.
1. Cycle power to the unit.
2. Check System Status Messages.
3. Check the Lynx MAT fault log.
4. Check the wiring between the unit and the
secondary equipment supplying the pressure
altitude.
5. Check the secondary equipment for problems.
Contact L3 Field Service before removal of unit.
•
No data on the weather
display.
•
ADS-B Out Fail lamp is
OFF.
Weather
The FIS-B data is not being transmitted to the weather
display.
Note: NEXRAD data is only transmitted every 5 minutes.
CONUS data is only transmitted every 15 minutes.
1. No ground station is in range.
2. The ground station may not provide FIS-B service.
Summary of Contents for CHEROKEE WARRIOR II
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