190-01279-01
GTS 8XX Part 23 AML STC Maintenance Manual
Rev. 2
Page 7-5
Ground Test
The Ground Test feature simulates aircraft flight conditions of 50,000 feet altitude and 0º heading for the
purpose of conducting the ramp and return to service tests described in Section 7.4.3.
Table 7-1 GTS 8XX System Flag Status
Notes:
[1] If the status flag is not active, the source is not configured or data is unavailable or invalid.
[2] If the status flag is not active, self-test can only be initiated on the ground.
7.3.1.2 Configuration Tab
The
Configuration
tab displays configuration data and allows the maintenance technician to configure the
GTS 8XX to the original configuration settings after maintenance has been performed (e.g., removal and
replacement). Refer to the aircraft records for a copy of the original configuration settings. The
Configuration
tab also displays the status of each data source. Table 7-2 depicts status icons that can be
displayed to the left of each data source field.
When the
Configuration
tab is selected, the GTS 8XX reboots into Configuration mode. Changed
configuration options will be highlighted yellow until the
Set Active
key is clicked. Configuration items
not applicable to the GTS 8XX system are disabled in the install tool.
NOTE
After the configuration changes are complete, make sure the
Set Active
key is selected.
Then return to the
Normal
tab on the Install Tool to allow the GTS 8XX to go into Operate
mode.
NOTE
Configuration settings will be lost if the
Set Active
key is not selected prior to switching to
a different tab.
Flag
Active Flag Description
Transponder #1 Active
Transponder #1 is active.
Transponder #2 Active
Transponder #2 is active.
Magnetic Variation
Magnetic variation data (difference between “true” North and magnetic
North) is available.
GPS Available
GPS Position, Velocity, and Time source is configured and valid data is
available. [1]
Display #1 Active
Traffic display #1 discrete input is active.
Display #2 Active
Traffic display #2 discrete input is active.
Radio Altitude Available
Radio altitude source is configured, and valid data is available. [1]
Mag Heading Available
Magnetic heading source is configured, and valid data is available. [1]
Airborne Self Test Allowed
Self-test can be initiated while airborne. [2]
