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G1000 System Maintenance Manual
Page 5-37
190-00903-00
Rev.
A
5.1.6.2 GDU Advisory Messages
Advisory Message
Possible Cause
Recommended Actions
MFD “key” KEYSTK – key is
stuck.
The G1000 has determined
a key is stuck on the MFD.
PFD1 “key” KEYSTK – key is
stuck.
The G1000 has determined
a key is stuck on PFD1.
PFD2 “key” KEYSTK – key is
stuck.
The G1000 has determined
a key is stuck on PFD2.
a.
Select the GDU Test Page and
verify key is stuck (if key is
stuck the corresponding
indicator will be green).
b.
Exercise suspected stuck key
and reset GDU Test Page to
see if indicator remains green
without pressing the key.
c.
If problem persists replace the
display.