Garmin GTX 330D Maintenance Manual page 122

Aircraft Type/Model
Triton A500
[1] Diamond DA 40 with Diamond OSB 40-004/3 incorporated, or aircraft with similar factory-
installed lightning protection supporting IFR operation.
[2] IFR models must use values of 10.0 and 5.0 for bonding tests, and use aircraft lightning
ground per the aircraft SRM or other manufacturer-approved data, as ground reference
instead of the instrument panel.
190-00734-11
Rev. 6
Ground Reference
Local grounded structure
GTX 33X and GTX 3X5 ADS-B Maintenance Manual
Maximum Resistance
Between GTX Chassis and
Ground Reference (mΩ)
Periodic Reconditioned
10.0 5.0
Notes
Page B-3