190-02207-A2
GPS 175/GNX 375/GNC 355 Part 23 AML STC Maintenance Manual
Rev. 3
Page 6-11
6.8 Bonding Strap
The following steps are provided as guidance for replacing a damaged bonding strap.
6.8.1 Bonding Strap Removal
The bonding strap is attached in two locations. The terminal lug is secured with a lock nut. To remove the
strap, access both sides of the bonding strap and unbolt the hardware.
6.8.2 Bonding Strap Replacement
1. Construct a bonding strap in accordance with the guidance provided in Section 4.2 of
GPS 175
Part 23 AML STC Installation Manual
(P/N 190-02207-A1),
GNX 375 Part 23 AML STC
Installation Manual
(P/N 190-02207-A4), or
GNC 355 Part 23 AML STC Installation Manual
(P/N 190-02207-A5).
2. If needed, clean the attachment locations with a bonding brush.
3. Secure each end of the bonding strap to the previously installed locations. Ensure that the strap
does not loop back on itself and that the hardware is as described in the installation manual. The
bonding strap hardware must seat fully against the aircraft metallic structure, without overhang or
interference from other hardware.
4. Using a milliohm meter, verify that the resistance between the connected structure is less than
2.5 mΩ.
