Geoff,

What was the local time at takeoff?


Mike


At 08:30 PM 4/08/2008, you wrote:
Hi all,

I was fortunate to fly on both August 1st and 2nd and on down-loading the flight logs, those from August 2nd registered the date as August 1. This occurred not only in the IGC file number (i.e. 881XXXX instead of 882XXXX) but also in the summary statistics in SeeYou. The really peculiar thing was that the same problem occurred with files from two independent GPS logger systems (one an iPAC 5550 with an Emtac bluetooth GPS and the other a Garmin Map 76S). As yet I haven't had the opportunity to check with the Flarm record. Both systems had correct calender date and UTC offset entered, which were unchanged when re-checked. It was almost as if the logger failed to recognise that the day flips over at 23-59-59 to 00-00-00 as the file numbers were sequenced 1 and 2 (last digit in file number).

Did anyone else encounter such a problem or can anyone offer an explanation? This is not the only time such a glitch has occurred - one happened at an almost identical time last year with a different Garmin Map76S. The only common factor between the two events was that both were high altitude wave flights (20,000 feet plus) with low cockpit temperatures. Is this a symptom of the unit possibly being outside the prescribed operating temperature range?

Thanks in anticipation.

Geoff V
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