Page 15-46
G900X/G950 Installation and Maintenance Manual – Software, Configuration, and Calibration
Revision D
190-00719-00
Initiate the AHRS magnetometer interference test procedure by performing the following steps:
1.
On PFD #1, enter Configuration Mode and go to GRS/GMU Calibration page as shown in
Figure 15-25.
2.
This page is protected and requires a keystroke password to perform this test. Press the following
softkeys in sequence:
i)
softkey 9
ii)
softkey 10
iii)
softkey 11
iv)
softkey 12
3.
Select
MAG INTERFERENCE TEST
and press the
ENT
key.
4.
Follow the checklist items displayed. Press the
ENT
key as each one is completed or confirmed.
NOTE
The 3
rd
item on the checklist instructs the operator to “prepare a detailed test sequence
with precise start and stop times for exercising all electronic devices”. The list of
recommended relevant electronic devices are given in Table 15-1. Adjust the table below
as appropriate for the specific aircraft being tested. Begin test with flaps retracted, flight
controls in a neutral position, all lights selected OFF.
Table 15-1. Recommended Magnetometer Interference Test Sequence
Elapsed Time
Since Start
of Test
(min:secs)
Action
0:00 Test
begins
0:10
Navigation lights on
0:20
Navigation lights off
0:30
Landing lights on
0:40
Landing lights off
0:50
Taxi lights on
1:00
Taxi lights off
1:20 Strobes
on
1:40 Strobes
off
1:50 Recognition
lights
on
2:00 Recognition
lights
off
2:10 Beacon
on
2:20 Beacon
off
2:30
Aileron full right
2:40
Aileron full left
2:50
Rudder full left
3:00
Rudder full right
3:10
Elevator full nose UP
3:20
Elevator full nose DN
3:30
End of test
