Gra 5500 Radar Altimeter - Garmin G1000 Nxi System Maintenance Manual

GRA 5500 Radar Altimeter

Original GRA 5500 Reinstalled
No software or configuration loading is required if the removed GRA 5500 is re-installed. This
does not include units that were returned for repair as their software and configuration files are
deleted during the repair testing process. Continue to the GRA 5500 Test Section 7.16.3.
New, Repaired or Exchange GRA 5500 Installed
If a new, repaired or exchange GRA 5500 is installed, the correct software and configuration
files must be loaded to the unit. Section 7.16.1 is for integrated GRA 5500 units. For non-
integrated GRA 5500 units using ARINC 429 connections to GIA 63W instead of RS-422, go to
Section 3.17 to load software and configure the unit.
LRU Replacement Procedure, Integrated GRA 5500
1. Open the MFD, PFD 1 (PRI), PFD 1 (SEC), and PFD 2 circuit breakers.
2. Apply power to the G1000 system by connecting external power to the aircraft to
energize the aircraft and avionics electrical busses.
3. Turn on Avionics electrical busses.
4. Power on PFD2, MFD, and PFD1 in configuration mode.
5. Using the PFD1, scroll to the LRU replacement page.
6. Activate the curser and select GRA in the LRU dropdown box.
7. Press the CHK All softkey.
8. Press the Load softkey.
9. Press ENT to acknowledge the process was complete.
10. Deactivate the curser.
11. Scroll to the Configuration Manager page.
12. Press the CNFM CFG softkey.
13. Select ok when prompted to "Confirm configuration as expected configuration"
14. Power cycle the system. Verify there are no red-Xs or system alerts.
15. If red-Xs or system alerts are present, troubleshoot as necessary using Section 5 or re-
load the system using the legacy method in Section 7.16.2.
16. If there are no red-Xs or system alerts, continue to Section 7.16.3.
Legacy Replacement Procedure, Integrated GRA 5500 (Alternate Method)
1. Insert the software loader card in the top slot of PFD1.
2. Power on PFD2, MFD, and PFD1 in configuration mode.
3. Select NO when "Do you want to update system files" is displayed on the screen of
PFD1.
4. Select the "SYSTEM UPLOAD" page using the small FMS knob on PFD1.
5. Activate cursor and rotate the small FMS knob to display the drop down menu. Rotate
the large FMS knob to highlight "05) Radar" and press ENT key on PFD1.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Page 328
Revision 1