Garmin GTN 6 series Maintenance Manual - page 48

System Maintenance Manual GTN 6XX/7XX Part 23 AML STC

190-01007-A1

Page 4-8

Rev. 6

4.7 GPS/SBAS Antenna Cable Overbraid Inspection (If Installed)

The GPS/SBAS antenna cable overbraid must be inspected after a known or suspected lightning strike. 

Check the antenna and overbraid for the following:

1. Check the cable overbraid for pinching, melting or evidence of arcing at the GPS/SBAS antenna 

end and at the GTN 6XX/7XX.

2. Check the lug at the GTN end for evidence of arcing and verify that the lug is still secured to the 

overbraid and to the GTN connector shield block.

3. Check that the overbraid is securely attached at the GPS/SBAS antenna end and at the 

GTN6XX/7XX.

If any of these checks shows evidence of a lightning strike, replace the overbraid assembly in accordance 

with Section 6.9.

4.8 WXR HSDB Cable Overbraid Inspection (If Installed)

The WXR HSDB cable overbraid must be inspected after a known or suspected lightning strike. Check the 

overbraid for the following:

1. Check the cable overbraid for pinching, melting or evidence of arcing at the WXR end and at the 

bulkhead to which the WXR R/T is mounted.

2. Check the lug at the WXR end for evidence of arcing and verify that the lug is still secured to the 

overbraid and to the WXR shield block.

3. Check that the overbraid is securely attached at the bulkhead end.

If any of these checks shows evidence of a lightning strike, replace the overbraid assembly in accordance 

with Section 6.10.