On 30 April 2015, the Federal Aviation Authority announced it will order Boeing 787 operators to reset its electrical system periodically, to avoid an integer overflow which could lead to loss of electrical power and ram air turbine deployment, and Boeing is going to deploy a software update in the fourth quarter.[11] The European Aviation Safety Agency followed on 4 May 2015.[12] The error happens after 2³¹ centiseconds (248.55134814815 days), indicating a 32 bit signed integer.11. "F.A.A. Orders Fix for Possible Power Loss in Boeing 787". New York Times. 30 April 2015.
That's every 8 months! On a brand new aircraft! You'd think the flight software guys would be aware of simple problems like this by now. "Captain, when did we last reboot the flight computers?"
Whoopsie indeed!!