Instructions for Continued Airworthiness GTN 6XX/7XX - Eurocopter EC130 SeriesPage 19 of 21 190-01007-K9 Rev. 12.11 Data Relative to Structural FastenersRefer to Garmin P/N 190-01007-B1, GTN 6XX/7XX PART 27 AML STC SYSTEM MAINTENANCEMANUAL Section 5 for fastener information.2.12 Special ToolsA milliohm meter with an accuracy of +/- 0.1 milliohms ohms (or better) is required to measure theelectrical bonding between the GTN/GMA system components and aircraft ground.2.13 Additional InstructionsNone. N/A2.14 Overhaul PeriodThe system does not require overhaul at a specific time period. Power on self-test and continuous BIT willmonitor the health of the GTN system. If any LRU indicates an internal failure, the unit may be removedand replaced (Refer to Section 5 of the GTN 6XX/7XX PART 27 AML STC SYSTEM MAINTENANCEMANUAL for Removal and Reinstallation instructions). See GTN 6XX/7XX PART 27 AML STC SYSTEMMAINTENANCE MANUAL, Section 4 for Troubleshooting information.2.15 ICA Revision and DistributionTo revise this ICA, Garmin will follow the Garmin ODA Procedures Manual SOP-0055/ACP-0016 forInstructions for Continued Airworthiness. The latest revision of this ICA document is available on theGarmin website (www.flyGarmin.com). To Access Aviation Manuals, select the ‘Support’ tab and thenselect ‘Manuals’. You may also contact Garmin General Aviation Product Support at 866-739-5687 (UStoll free) 913-397-8200 or avionics@garmin.com. A Garmin Service Bulletin describing ICA revision willbe sent to Garmin dealers if a revision is determined to be significant.2.16 AssistanceFlight Standards Inspectors or the certificate holder’s PMI have the required resources to respond toquestions regarding this ICA. In addition, the customer may contact Garmin with questions regarding thisequipment and its installation. Garmin Customer Support may be contacted during normal business hoursvia telephone 913-397-8200 or from the Garmin web site at www.flyGarmin.com.2.17 Implementation and Record KeepingModification of an aircraft by this Supplemental Type Certificate obligates the aircraft operator to includethe maintenance information provided by this document in the operator’s aircraft maintenance manualand/or the operator’s rotorcraft scheduled maintenance program.