PPRuNe Forums - View Single Post - Boeing 787s must be turned off and on every 51 days
Old 4th Apr 2020, 21:12
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WHBM
 
Join Date: Oct 2002
Location: London UK
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a software glitch crashed all of the F-22s' on-board computers as they crossed the international date line.
That was a well known one in commercial systems some years ago that they could not handle the clock going backwards; we had to hard shut down overnight in the autumn when winter time came in.

Another one worked fine for a couple of years but could not handle the next leap year that came along for any payments initiated before February 29th that were due afterwards.

One accounting system I was involved with started to lose large numbers of transactions. Eventually traced to an internal counter that went up to 9999, but that was proving insufficient so it was increased - everywhere but in one place, so while everything else moved on from 9999 to 10001, this went to 0001 and started overwriting the initial items.
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