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Instructions for Continued Airworthiness 190-01527-15 Rev 1

for the Garmin G500H Installation in Eurocopter EC130 Page 31 of 82

Section 12-10-00 Return-to-Service Practices

1. General

a) GMU 44 Magnetometer

1. Power up the G500H system with the GDU 620 in normal mode.

2. Verify that the GDU displays valid heading within approximately one minute. Note that

heading can remain invalid if the magnetometer is near a large metal structure such as a

hangar wall or if the magnetometer is close to a large ground power cart.

3. Verify that no unexpected alerts are present. If alerts are present, troubleshoot using Section

31-00-00 Troubleshooting.

GDC 74H

1. Power up the G500H system with the GDU 620 in normal mode.

2. Verify that the GDU displays valid air data within approximately one minute.

3. Verify that no unexpected alerts are present. If alerts are present, troubleshoot using Section

31-00-00 Troubleshooting.

4. Drain pitot-static system (reference table 5-01 90 Day Inspection)

5. Perform a leak check of the pitot-static system and observe the airspeed, altitude, and vertical

speed for proper operation.

GRS 77H

1. Power up the G500H system with the GDU 620 in normal mode.

2. Verify that the GDU displays valid heading and attitude within approximately one minute. Note

that heading can remain invalid if the magnetometer is near a large metal structure such as a

hangar wall or if the magnetometer is close to a large ground power cart.

3. Verify that no unexpected alerts are present. If alerts are present, troubleshoot using Section

31-00-00 Troubleshooting.

d) GDU 620

1. Power up the G500H system with the GDU 620 in normal mode.

2. Verify that there are no red-Xs and that no alerts are present. If red Xs or alerts are present,

troubleshoot using Section 31-00-00 Troubleshooting.

12-10-00

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Garmin B4 Bedienerhandbuch Seite 31