On Apr 5, 9:02*am, T8 wrote:

Next time you go to the glider try to download the same log. If it
fails make another flight, then try to download that new log, and the
one that failed previously. If either fails please try a different
download utility. Let us know what happens please.

I think, from my own experience, it is possible for the security fail
to go away without anything being done to the 302.

I never clear my 302 and record all flights at 2 second interval.
Memory was probably cleared when sent in for calibration and service
but the last time that happened was 2005. I have experienced about
2 security fails in over 700 hours logged at 2 sec and I don't think
any in the last 185 hours.

Looking back at my notes, I had a suspicion that the security fail
problem was related to the download utility being used, and that using
a different utility didn't show the problem. That was based on a
postdownload review of saved flight logs and their securty as reported
by Cambridge Aero Explore Plus. I must have lost interest though,
since I didn't come to any firm conclusion about that.

Andy (GY)