I’ve sending off to see what AFS thinks, but wondering if anyone here has seen before.
When I shut down the plane, my AFS-4500 EFIS when through the normal shut down procedure, but when it completed and turned off, it starting right back up and again, going through the normal start up procedure. I had to disconnect the backup battery to kill the power and shut it down.
Could this is a software/SD card issue (AFS uses SD cards that it boots off of at start up) or possibly a backup battery that is starting to go bad? I’m thinking the voltage is dropping enough and then kicks back up that the system thinks power has been restored? I plan on putting a volt meter on it the next time I can get out there.
The SD cards are original (I believe), so they are over ten year old. The Backup battery is probably at least 5, so it could also be due to be replaced.
Interestingly, I also noticed the clock was slow by 2.5 hours too, which leans me towards the backup battery being the issue, assuming the EFIS uses the backup battery to keep the time when the EFIS is off.
Vince
RV-7
N567VB
When I shut down the plane, my AFS-4500 EFIS when through the normal shut down procedure, but when it completed and turned off, it starting right back up and again, going through the normal start up procedure. I had to disconnect the backup battery to kill the power and shut it down.
Could this is a software/SD card issue (AFS uses SD cards that it boots off of at start up) or possibly a backup battery that is starting to go bad? I’m thinking the voltage is dropping enough and then kicks back up that the system thinks power has been restored? I plan on putting a volt meter on it the next time I can get out there.
The SD cards are original (I believe), so they are over ten year old. The Backup battery is probably at least 5, so it could also be due to be replaced.
Interestingly, I also noticed the clock was slow by 2.5 hours too, which leans me towards the backup battery being the issue, assuming the EFIS uses the backup battery to keep the time when the EFIS is off.
Vince
RV-7
N567VB