Page 8-10 G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 4 190-00716-01
8.2 GFC 700 Ground Checkout
The following procedures verify the proper operation of the GFC 700 AFCS, after maintenance has been
performed. The technician performing these checks should be thoroughly familiar with the G1000 and
GFC 700. Information on the installation and operation of the GFC 700 can be found by referring to
Sections 6.11, 6.14 and the G1000 in King Air 300/B300 Cockpit Reference Guide, listed in Table 1-2.
NOTE
In the sections that follow, an Autopilot disconnect should be accompanied by an aural
alert (two-second tone) unless otherwise specified.
8.2.1 Pre-Flight Test
1. If selected ON, set the AVIONICS MASTER PWR and EXT PWR switches to OFF. After 30
seconds set the EXP PWR and AVIONICS MASTER PWR switches to ON. Verify the GFC 700
begins an automatic pre-flight test after AHRS and ADC parameters become valid.
2. Verify that a white ‘PFT’ annunciation is displayed on PFD1 and PFD2, as shown in Figure 8-4.
Figure 8-4, Pre-Flight Test
NOTE
A momentarily red annunciation displayed before PFT starts is acceptable.
3. Upon successful completion of the test, an aural alert will sound and the annunciation will clear. The
aural alert is generated by either GIA 63W #1 or GIA 63W #2, alternately, with each system power-
up. Thus, the PFT sequence must be run twice to verify both GIA units are providing the correct
aural alert.
NOTE
If the ‘PFT’ annunciation turns red, the test has failed. Return to Section 1 for
troubleshooting.
4. Repeat Steps 1 - 3 to test the PFT aural alert for the other GIA 63W.
Continue to Section 8.2.2.
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