Page 7-2
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 1
190-00716-01
7.1.1
PFD/MFD Test
1.
Allow displays to initialize for ~1 minute.
2.
Check that all COM/NAV display fields are valid in the top corners of both PFDs.
3.
Check that attitude, heading, altitude, airspeed, vertical speed and OAT fields are valid within 2
minutes of power up on both PFDs.
4.
Press the SENSOR softkey on each PFD and switch between ADC1 and ADC2. Verify that data
from both GDC 7400s is valid on both displays.
5.
Press the SENSOR softkey on each PFD and switch between AHRS1 and AHRS2. Verify that data
from both GRS 77s is valid on both displays.
6.
Check that the engine instrument fields are valid on the MFD.
Figure 7-1, G1000 Normal Mode Check
7.
Push the red DISPLAY BACKUP button on the pilot-side GMA 1347D. Verify that the pilot-side
PFD and MFD displays enter reversion mode. MFD should have valid altitude, airspeed, vertical
speed, COMM1, COMM2, NAV1, NAV2 and engine instruments.
8.
De-activate pilot-side reversion mode by pushing the DISPLAY BACKUP button. Verify PFD 1 and
MFD return to normal display modes.
9.
Repeat Step 1 using GMA2. Ensure that PFD 2 and MFD enter reversion mode and MFD displays
valid altitude, airspeed, vertical speed, COMM1, COMM2, NAV1, NAV2 and engine instruments.
10.
De-activate co-pilot’s side reversion mode by pushing the DISPLAY BACKUP button. Verify PFD 2
and MFD return to normal display modes.
11.
Select the TAWS page on the MFD.
12.
Verify that the title at the top of the page reads “MAP – TAWS-B” or “MAP-TAWS-A”. If TAWS
has not been enabled, the title will read “MAP – TERRAIN PROXIMITY” or “MAP – TERRAIN”.
13.
Press the MENU button and select “Test TAWS” from the pop-up menu.
14.
After the TAWS test has completed, verify that “TAWS System Test Okay” is heard over the cockpit
speaker.
15.
If no other service is to be performed, perform final return-to-service test as specified in Section 8.
Summary of Contents for Cessna Caravan G1000
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