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G1000 Supplemental Maintenance Manual
Page 5-19
Textron Nav III Series
Revision 3
190-02128-04
Key Alerts
Failure Message
Cause
Solution
MFD
“key” KEYSTK – key is
stuck.
The SYSTEM has determined a
key is stuck on MFD.
•
Go to the GDU TEST page in
configuration mode and verify key
is stuck (if key is stuck the
corresponding indicator will be
green).
•
Exercise suspected stuck key and
reset GDU TEST page to see if
indicator remains green without
pressing the key.
✓
If problem persists replace the
display.
PFD
“key” KEYSTK – key is stuck.
The system has determined a key
is stuck on the PFD.
Miscellaneous Alerts
Failure Message
Cause
Solution
XTALK ERROR
– A flight display
cross talk error has occurred.
A communication error has
occurred between the MFD and
PFD.
•
Ensure a database error has not
occurred (identified in the ALERTS
window on the PFD).
✓
If a database error has
occurred, correct error before
proceeding.
•
Check display Ethernet
interconnect wiring.
•
Replace PFD with a known good
unit, to verify location of problem:
✓
If problem persists, reinstall
original PFD and replace MFD.
DATA LOST
– Pilot stored data
lost. Recheck settings.
Pilot stored data has been lost.
•
If the CLR key was held during a
power cycle, disregard message.
•
Cycle power to PFD:
✓
Ensure CLR key is not stuck
on the GDU TEST page.
✓
If problem persists, replace
PFD.
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