System Maintenance Manual

G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air Page 5-33
190-00915-01 Revision 6
9. The GIA Maintenance Log can record any of the following faults:
• FCS Task not started: Bad gains
The FCS task has not started because the gains are not present or have been corrupted.
Reload the gain files to correct.
• FCS Task not started: Gain structure out of range
The FCS task has not started because the gains are not compatible with the GIA software.
Reload the gain files to correct.
• PFT FAIL: Timeout, <STEP>
Pre-flight test has failed because the specified step has not passed in the allotted time. See the GIA
pre-flight steps for a description of the possible values for <STEP> on the failed GIA and corrective
actions.
• PFT FAIL: Cross GIA Failed, State: <STEP>
Pre-flight test has failed on opposite GIA. <STEP> specifies the pre-flight test step on selected
GIA that was in progress when the pre-flight test failed on the opposite GIA. See the GIA pre-flight
steps for a description of the possible values for <STEP> on the failed GIA and corrective actions.
• PFT FAIL: <STEP>
Pre-flight has failed because the step specified has failed. See the GIA pre-flight test steps for a
description of the possible values for <STEP> on the failed GIA and corrective actions.
• AHRS MON invalid: <STATE>
The AHRS monitor has detected that the AHRS data is invalid. The possible values for <STATE>
are:
a. Mon Prmtr Invalid: The ARINC 429 data used by one of the monitors has not been
received.
b. Attitude Prmtr Invalid: The ARINC 429 pitch or roll angle has not been received.
c. Exceeded Attitude Limits: The pitch or roll angle has exceeded the engagement limits.
d. Cross Hdg Accel Fail: Cross heading acceleration monitor failed.
e. Vert Accel Fail: Vertical acceleration monitor failed.
f. Fltrd Cross Hdg Accel Fail: Filtered cross heading acceleration monitor failed.
g. Fltrd Vert Accel Fail: Filtered vertical acceleration monitor failed.
h. Roll Accel Fail: Roll acceleration monitor has failed.
i. Normal Accel Fail: Normal acceleration has failed.
Troubleshoot the GRS 77 for the cause of the failure.
• Stuck switch invalidated parameter: <AXIS>
A MET switch in the specified axis is stuck.
Check the MET (trim) switches for proper operation.