Garmin G5 Electronic Flight Instruments with software version 7.10 (and earlier) installed in Experimental and Light-Sport Aircraft installed with a backup battery with the ‘Show Battery Status’ configuration set to ‘When Using Battery’ are affected.
https://s23634.pcdn.co/en-US/aviationalerts/wp-content/uploads/2021/12/21113B.pdf
NOTE
This Service Alert does not apply to certified G5 installations. Certified G5 installations must follow approved AFMS procedures.
ACTION:
Do the following before any flight into Instrument Flight Conditions (IMC):
Push the Power button on the G5 attitude indicator.
Make sure the battery status indicator is green on the G5 attitude indicator. (see images in linked Alert below)
WARNING
If a green battery status is not shown, or no battery is detected, do not fly into IMC.
RESOLUTION:
This issue has been fixed in G5 Software Version 7.70. Refer to Garmin Service Bulletin 21107.
last firmware(V8.0) https://www8.garmin.com/support/collection.jsp?product=010-01485-00
https://s23634.pcdn.co/en-US/aviationalerts/wp-content/uploads/2021/12/21113B.pdf
NOTE
This Service Alert does not apply to certified G5 installations. Certified G5 installations must follow approved AFMS procedures.
ACTION:
Do the following before any flight into Instrument Flight Conditions (IMC):
Push the Power button on the G5 attitude indicator.
Make sure the battery status indicator is green on the G5 attitude indicator. (see images in linked Alert below)
WARNING
If a green battery status is not shown, or no battery is detected, do not fly into IMC.
RESOLUTION:
This issue has been fixed in G5 Software Version 7.70. Refer to Garmin Service Bulletin 21107.
last firmware(V8.0) https://www8.garmin.com/support/collection.jsp?product=010-01485-00
Last edited:
