Page 7-2
G1000/GFC 700 Post Installation Checkout Procedure - Hawker / Beechcraft King Air C90
Revision 5
190-00682-00
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.
If the ‘
PFT’
annunciation turns red, the test has failed. Refer to the System Maintenance Manual
for troubleshooting.
4. Repeat Steps 1 - 3 to test the PFT aural alert for the other GIA 63W.
5. Continue to Section 7.2.
7.2
AFCS Switch Checks
Verify that the AFCS system buttons and switches are operating correctly by performing the following:
1. Actuate both sections of the PITCH TRIM (NOSE UP/NOSE DN) switch to activate Manual
Electric Pitch Trim (MEPT). Verify the trim clutch engages and the trim wheel drives in the
requested direction. Check operation in both the up and down direction.
2. Press the AP/YD DISC TRIM INTRPT switch and hold while actuating the manual electric trim
switch. Verify trim does not run and the trim wheel rotates freely when moved manually. Release
the AP/YD DISC TRIM INTRPT button and PITCH TRIM switch.
3. Engage the autopilot by pressing the AP key on AFCS mode controller. Press and hold the left
section of the manual electric trim switch. Verify the Autopilot disengages normally with an aural
alert and the trim wheel rotates freely when moved manually.
4. Engage the autopilot again by pressing the AP key on the AFCS mode controller. Verify the pitch
and roll clutches engage and resist movement of the control wheel. Press and hold the CWS
switch and verify the control wheel moves freely when moved manually. Verify the green ‘AP’ at
the top of PFD1 and PFD2 is replaced by a white ‘CWS’.
5. Release the CWS switch and press the ‘XFR’ key on the AFCS mode controller. Verify the
clutches are engaged and resist movement of the control wheel. Press and hold the CWS switch
and verify the control wheel moves freely when moved manually. Verify the green ‘AP’ at the top
of PFD1 and PFD2 is replaced by a white ‘CWS’.
6. Release the CWS switch and press the AP/YD DISC TRIM INTRPT switch on the pilots control
wheel. Verify the autopilot disengages with a flashing amber ‘AP’ annunciation on PFD1 and
PFD2, accompanied by an aural alert. Verify that the control wheel is free in pitch and roll axes.
7. Engage the autopilot again by pressing the ‘AP’ key on the AFCS mode controller. Open AFCS
SERVOS circuit breaker. Verify the autopilot disconnects and the abnormal disconnect is
provided, consisting of a continuous aural alert and a flashing red/white ‘AP’ annunciation. Verify
no AFCS annunciations (e.g. AFCS, PFT, Mistrim) remain on PFD1 or PFD2. Press the AP/YD
DISC TRIM INTRPT switch to cancel the abnormal alert. Close the AFCS SERVOS circuit
breaker to restore power to the system and wait for completion of the pre-flight test sequence.
8. Engage the autopilot again by pressing the ‘AP’ key on the AFCS mode controller. Ensure the
autopilot is coupled to GIA1 by verifying the arrowhead next to the ‘XFR’ key on the AFCS mode
controller is pointing to the pilot’s side. If the arrowhead points to the copilot’s side, press the
‘XFR’ key. Open GIA1 primary and secondary circuit breakers. Verify the autopilot disconnects
with a continuous aural alert and a flashing red/white ‘AP’ annunciation. Press the AP/YD DISC
TRIM INTRPT switch to cancel the alert and annunciation. Close the GIA1 primary and
secondary circuit breakers and wait for completion of the pre-flight test sequence.
9. Press the ‘XFR’ key on the AFCS mode controller and engage the autopilot by pressing the ‘AP’
key on the AFCS Mode Controller. Press the AP/YD DISC TRIM INTRPT switch on the pilot side
to disconnect the autopilot; verify the flashing amber ‘AP’ alert is displayed on PFD1 & 2.
NOTE
