Ahrs/Air Data Backup Path Test; Flight Test; Vhf Com Tests; Vor/Ils Tests - Garmin G1000 Maintenance Manual

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8.4

AHRS/AIR DATA BACKUP PATH TEST

Step
Secondary AHRS/ADC path check:
1.
Remove power from PFD.
2.
Remove power from GIA2.
3.
Check for desired results.
4.
Restore power to the PFD and GIA2.
8.5

FLIGHT TEST

A flight test is recommended after the installation is complete to ensure satisfactory performance of
G1000.
8.6

VHF COM TESTS

Verify the communications capability on both the high and low ends of the VHF COM spectrum. It may
be required by the governing regulatory agency to verify operation of the COM transmitter and receiver at
the extents of the ground facility's service volume (FAA AC 23-8A).
8.7

VOR/ILS TESTS

Select a VOR channel within a 40 nautical mile range. Listen to the VOR audio and verify that no
electrical interference such as magneto noise is present. Check the tone identifier filter operation. Fly
inbound or outbound on a selected VOR radial and check for proper LEFT/RIGHT, TO/FROM flag
indications on the CDI. Check the VOR accuracy. It may be required by the governing regulatory
agency to verify operation of the VOR receiver at the extents of a ground facility's service volume (FAA
AC 23-8A).
8.8

MAINTENANCE RECORDS

After conducting the function check flight in accordance with the Airplane Maintenance Manual, the
aircraft may be returned to service. Record the following information in appropriate aircraft maintenance
logs:
•
Part number of the loader card used to perform software loading or software updates.
•
Any other applicable information related to the maintenance work performed on the aircraft.
Page 8-4
Rev. B
Desired Result
The following shall occur on the MFD when power is
removed from the PFD and GIA2:
•
MFD switches to reversion mode.
•
Attitude and Heading remain valid from AHRS.
•
Airspeed, Altitude, Vertical Speed, and OAT
remain valid from Air Data Computer.
•
Engine Instrumentation flags invalid.
•
All COM & NAV fields flag invalid.
G1000 System Maintenance Manual
190-00907-00