Garmin G500 Руководство по эксплуатации - Страница 8
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Within the preceding 12 calendar months, proper operation of the attitude instrument must be verified
with the following procedure:
1. Apply aircraft power to the unit and verify that the invalid flag is removed from view and the
STBY PWR indicator is not illuminated.
2. Remove aircraft power from the unit and verify that the invalid flag is not visible and the STBY
PWR indicator is flashing.
3. Press the STBY PWR button and verify that the invalid flag is not visible and the STBY PWR
indicator is not flashing.
4. Press the STBY PWR button a second time and verify that the invalid flag is displayed.
Otherwise maintenance of the Mid-Continent Instruments attitude indicator is 'on condition' only.
2.5.10 Electrical Bonding Test
G500/G600 LRU electrical bonding must be tested every 2000 flight hours or ten (10) years, whichever
is first. During the test, any cables normally attached to the LRU must be disconnected from the LRU. If
measured resistance is greater than applicable values in the following table, bonding must be improved
to meet applicable requirements for a new installation in accordance with section 3.8 of the G500/G600
AML STC Installation Manual.
LRU
GDU 620 – Display Unit
GRS 77 – Attitude, Heading
Reference System (AHRS)
GMU 44 – Magnetometer
GDC 74( ) – Air Data Computer
GTP 59 – OAT Probe
GAD 43/43e – Adapter
Note: there are no applicable bonding requirements for the Mid-Continent Instruments Attitude Indicator
Models 4300-4( ), or 4200-( ) with MD420.
G500/G600 PFD/MFD System
Instructions for Continued Airworthiness
Metallic Aircraft
40 mΩ (to instrument panel)
20 mΩ (to aircraft ground
plane)
20 mΩ (to aircraft ground
plane)
20 mΩ (to aircraft ground
plane)
5 mΩ (to aircraft skin)
20 mΩ (to aircraft ground
plane)
Non-Metallic Aircraft
40 mΩ (to instrument panel)
20 mΩ (to instrument panel)
No bond check required since
the GMU is required to be
isolated from its mounting
location. Verify that there is
sufficient clearance around the
installation per section 2.5.11.5.3
of the G500/G600 AML STC
Installation Manual
20 mΩ (to instrument panel)
No bond check required since
the GTP is required to be
isolated from its mounting
location. Verify that there is
sufficient clearance around the
installation per section 2.5.11.7.2
of the G500/G600 AML STC
Installation Manual
20 mΩ (to instrument panel)
190-00601-00 Rev. L
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