Karel Hübl

See this comment in arrow-datafusion: https://github.com/apache/arrow-datafusion/pull/1339#issuecomment-982930856

After formatting the SD card, there was no issue during last few flights.

I can see: "FLARM expires xx.02.20211 in 1158050144 days". (After the fonts were changed in 177 I cannot see the day value, but I think there was 01 in previous...

After enabling and disabling the FANET (even FLARM) the expire value stays the same. Actually today it just has changed to 1158050143...