Page 7-38
G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 1
190-00716-01
7.17.2
Functional Check for TAWS-A
1.
With the G1000 in Normal Mode, use the GCU FMS knob to select the MAP group and TAWS page
on the MFD.
2.
Verify that the title at the top of the page reads “MAP – TAWS-A”.
NOTE
If TAWS has not been enabled, the title will read “MAP – TERRAIN PROXIMITY” or
“MAP – TERRAIN”. Refer to section 3.29 for TAWS Configuration for configuring
TAWS.
3.
Press the GCU MENU button and select “Test TAWS System” from the pop-up menu. Verify TAWS
test annunciation is displayed on the MFD and both PFDs.
4.
After the TAWS test has completed, verify that “TAWS System Test Okay” is heard over the cockpit
speaker (if selected) and the headsets.
5.
Press the GCU MENU button again and select “Inhibit TAWS” from the pop-up menu and press ENT
on the GCU. Verify “TAWS INH” is displayed on PFD 1 and PFD 2.
6.
Press the GCU MENU button again and select “Enable TAWS” from the pop-up menu and press ENT
on the GCU. Verify the “TAWS INH” annunciation on the PFDs has extinguished.
7.
Press the GCU MENU button again and select “Inhibit GPWS” from the pop-up menu and press ENT
on the GCU. Verify “GPWS INH” is displayed on PFD 1 and PFD 2.
8.
Press the GCU MENU button again and select “Enable GPWS” from the pop-up menu and press ENT
on the GCU. Verify the “GPWS INH” annunciation on the PFDs has extinguished.
9.
Press the GCU MENU button again and select “Flap Override” from the pop-up menu and press ENT
on the GCU. Verify “FLAP OVR” is displayed on PFD 1 and PFD 2.
10.
Press the GCU MENU button again and select “Disable Flap Override” from the pop-up menu and
press ENT on the GCU. Verify the “FLAP OVR” annunciation on the PFDs has extinguished.
11.
With a GPS position acquired, shield or disconnect the GPS antennas to remove the GPS signal.
Verify “LOI” shows on the MFD and the “TAWS N/A” and “LOI” annunciations show on the
PFDs.
12.
Reconnect or remove the shield from the GPS antennas and verify the MFD “LOI” indication and
PFD “TAWS N/A” and “LOI” annunciations are removed once the GPS satellites are acquired.
13.
Pull the RADIO ALTM circuit breaker. Verify “GPWS FAIL” is displayed on PFD1 and PFD2.
14.
Reset the RADIO ALTM circuit breaker. Verify “GPWS FAIL” annunciations are removed.
15.
Pull PFD1 PRI and PFD1 SEC circuit breakers. Re-power PFD1 in configuration mode, and use the
PFD1 FMS knob to select the Audio Alert Configuration page.
Summary of Contents for Cessna Caravan G1000
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