This sounds a bit like this issue: https://www.aviationtoday.com/2015/05/05/boeing-787-power-issue-to-receive-software-fix/ https://www.aviationtoday.com/2015/

This sounds a bit like this issue: https://www.aviationtoday.com/2015/05/05/boeing-787-power-issue-to-receive-software-fix/ https://www.aviationtoday.com/2015/05/05/boeing-787-power-is... Which was an issue where the 787's Generator Control Units went into failsafe mode after being powered on for 248 days...