Garmin G1000 Maintenance Manual page 156

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Do not cancel a software upload that is in progress. A canceled software upload
may result in an unresponsive GEA 71.
7.7.1 GEA Testing
If unit is removed or replaced the following tests are recommended:
Each GEA sensor input must be checked with the aircraft engine off. Verify all engine
information systems are valid on the MFD, and no GEA related alerts appear on the PFD.
Exercise and test all discrete, analog, and/or digital inputs and check for appropriate responses.
Page 7-30
Rev. B
G1000 System Maintenance Manual
190-00907-00