Do you have the same issue if you follow the OP’s steps to reproduce it?
yes
Provide extra information to complete the original description of the issue:
Standby ASI shows 60 kts when G1000 shows 170 kts.
Do you have the same issue if you follow the OP’s steps to reproduce it?
yes
Provide extra information to complete the original description of the issue:
Standby ASI shows 60 kts when G1000 shows 170 kts.