Installation Manual

Table Of Contents
Lynx NGT-9000
Installation Manual
0040-17001-01 (Revision W) Maintenance Page 4-14
Table 4-2: System Status Messages
SYMPTOM CAUSE/CORRECTIVE ACTIONS
ADS-B Out Fail *
The message is seen due to the following failure(s):
1090 Transmitter
GPS Sensor
Bus Monitor
Transponder Rate
Invalid Mode S ID (ICAO Code)
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.
Airport DB Fail
Airport Database (68DC) compatibility failure.
1. Try clearing the failure performing a warm startup by
tapping the Restart button.
2. Reload the airport database using the MPC (MAT).
3. If the problem continues. Contact ACSS Field Service.
Ambient Light Sensor Fail
Ambient Light Sensor communication failure.
1. Try clearing the failure performing a warm startup by
tapping the Restart button or cycling power.
2. If the problem continues, replacement of the unit may be
required. Contact ACSS Field Service before removal.
Audio External Fail
The message is seen if a failure of the Audio Mute Discrete
(audio suppression) is detected. This only occurs when aircraft
is On Ground.
1. Try clearing the failure performing a warm startup by
tapping the Restart button.
2. Check the audio mute wiring or interface for possible
errors.
3. Contact ACSS Field Service if problem continues.
Note: The following messages will also be seen: TAS/TCAS
Fail (when TAS/TCAS
installed), TAWS Fail (when TAWS
installed), and ADS-B/ATAS/TCAS Fail (when ATAS
installed).
Audio Fail
The message is seen if the Internal audio test fails.
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.
Note: The following messages will also be seen: TAS/TCAS
Fail (when TAS/TCAS
installed), TAWS Fail (when TAWS
installed), and ADS-B/ATAS/TCAS Fail (when ATAS
installed).