G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Page 5-35
190-00716-01
Revision 1
PFT step 5: System initialization, verify servo PFT is complete
This step is checking to make sure that all servos have completed their own PFT. This does not check
whether the servo PFT passed or failed. It verifies that the servo PFT is no longer in progress.
PFT step 6: Verify cross GIA is initialized
This step is checking to make sure the other GIA is also on step 6 of its PFT.
If this step fails, try cycling power on GIA1, GIA2, and all servos. If PFT still fails at step 6 then you
will need to go check the PFT status of the other GIA and see what step it is failing (it should be prior to
step 6). NOTE: The PFT status is communicated between GIA1 and GIA2 using HSDB. As a result,
both the PFD and MFD must be powered for this state to pass.
PFT step 7: Verify servo type
This step is checking to make sure the Servos are the correct type (torque and speed).
If this step fails, make sure the Servo configuration on the GFC configuration page matches the Servos
installed in the aircraft.
PFT step 8: Verify servo first certification data
This step is checking to make sure the servos have the same certification gains loaded in them as the
GIAs have.
If this step fails, reload the certification gains in GIA1, GIA2, and all servos.
PFT step 9: Verify servo second certification data
This step is checking to make sure the servos have the same certification gains loaded in them as the
GIAs have.
If this step fails, reload the certification gains in GIA1, GIA2, and all servos.
PFT step 10: Updating servo RTC
This step is setting the system time in the servos to by the same time as the GIA system time.
This step should never fail.
PFT step 11: Verify servo PFT status
This step is checking to make sure the servos have all passed their own PFT.
If this step fails, please proceed to servo PFT explanation below.
Summary of Contents for Cessna Caravan G1000
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