Traffic Ground Checks - Garmin GI 275 Installation Manual

6.3.3

Traffic Ground Checks

6.3.3.1 ADS-B In Interface Check
This check is required for units configured as an HSI (with Enhanced HSI page), HSI/Standby ADI (with
Enhanced HSI page), and MFD (with Traffic page).
If the installed system is configured to receive ADS-B In data through an interface with an ADS-B In
capable unit (e.g., GTX 345, GTS ADS-B, or GNX 375), the interface is verified as follows:
NOTE
The following steps may be performed as a ground check as long as the aircraft is within
range of an FAA ground station with available targets of opportunity. If this is not the
case, it is recommended that these checks be performed in-flight within range of an FAA
ground station.
1. Power on the GI 275 in Normal mode.
2. HSI: Navigate to the HSI Map page.
MFD: Navigate to the Traffic page.
3. Turn on the interfacing ADS-B In capable equipment.
a. If the installation includes TAS/TCAS correlated traffic, turn on the TAS/TCAS source.
4. Verify an amber "NO DATA" message is not displayed over the ownship icon.
5. HSI: Verify there are no "FAIL" annunciations in traffic status window.
a. If the installation includes TAS/TCAS correlated traffic, verify that the TAS/TCAS status is
either "OPER" or "STBY".
6. Observe targets of opportunity from ADS-B equipped aircraft or an FAA ground station.
6.3.3.2 TAS/TCAS Traffic Interface Check
This check is required for units configured as an HSI (with Enhanced HSI page), HSI/Standby ADI (with
Enhanced HSI page), and MFD (with Traffic page).
NOTE
If the GI 275 system is configured for an external control (i.e., a display other than the MFD is
controlling the traffic system), then the Standby/Operate testing does not have to be completed.
If the interfaced traffic system is any of the following, then verify the interface per the instructions
included in this section:
• L3 Communications SKY497/SKY899 SkyWatch®
• Honeywell (Bendix/King) KTA 870/KMH 820, KTA 970/KMH 920
• Avidyne TAS 6XX (Ryan 9900BX TCAD)
• GTS 8XX
1. Power on the GI 275 in Normal mode.
2. HSI: Navigate to the HSI Map page.
MFD: Navigate to the Traffic page.
3. Verify that no TAS/TCAS failure annunciations (e.g., "NO DATA", "TRFC FAIL", "NO TRFC
DATA", "DATA FAILED", "FAILED") are shown on the traffic map.
a. HSI: This completes the check.
190-02246-10
Rev. 11
GI 275 Part 23 AML STC Installation Manual
Page 6-10