Installation Manual

Lynx NGT-9000
Installation Manual
0040-17001-01 (Revision W) Maintenance Page 4-13
Table 4-2: System Status Messages
SYMPTOM CAUSE/CORRECTIVE ACTIONS
ADS-B In – Fail *
ATAS – Fail (if ATAS enabled)
The message is seen due to the following failure(s):
• GPS Sensor
• Bus Monitor
• 1090 ADS-B In Receiver [For international (non U.S.)
installations]
1. Try clearing the failure performing a warm startup by
tapping the Restart button.
2. Check GPS equipment for errors.
3. If the problem continues, replacement of the unit or GPS
antenna may be required. Contact ACSS Field Service
before removal.
ADS-B In – External Fail
ATAS – External Fail (if ATAS enabled)
The message is seen due to the following failure(s):
• GPS Antenna/Cable
1. A reboot may clear the failure. Tap the Restart screen
button to perform a warm startup.
2. Incorrect configuration options have been selected.
3. If the problem continues check, the interface devices
listed above for possible errors.
4. Message is seen when aircraft is on ground and audio is
muted.
5. If the problem continues, replacement of the interface
device may be required. Contact ACSS Field Service
before removal.
ADS-B In – Degraded
ATAS – Degraded (if ATAS enabled)
The message is seen due to the following failure(s):
• 1090 ADS-B In Receiver.
• GPS Signal still searching.
• UAT In
1. Wait 2-3 minutes for the GPS signal to acquire.
2. Move aircraft in area where the GPS signal is not being
blocked.
3. Cycle power to the unit to try clearing the failure.
4. If the problem continues check, the interface devices
listed above for possible errors.
5. If the problem continues, replacement of the unit or the
listed input device may be required. Contact ACSS Field
Service before removal.
ADS-B Out – External Degrade
The message is seen if a failure of the GPS Antenna/Cable is
detected.
1. Try clearing the failure performing a warm startup by
tapping the Restart button.
2. If the problem continues, check the GPS equipment for
errors. Contact ACSS Field Service before removal.
ADS-B Out - Degrade
The message is seen if a failure of the GPS Sensor is detected.
1. Try clearing the failure performing a warm startup by
tapping the Restart button.
2. If the problem continues, replacement of the unit may be
required. Contact ACSS Field Service before removal.