In 2015 we learned that Boeing 787s needed to be turned off and on every 248 days. The problem was that the plane’s generators, powered on for over 8 continuous months, could fail and cause lack of control. The FAA issued an airworthiness directive to use the universal IT fix and Boeing went to work on a more permanent solution.
Now though we learn that the Airbus A350 needs to be turned off an on too.