Re: So...
I guessing the solution is to disconnect the batteries and ground power every 247 days.
The directive requires operators to perform and electrical power deactivation at intervals not to exceed 120 days. So it would seem that it is typical that planes are not routinely electrically power deactivated.
It would be interesting to know how Boeing discovered this fault, I suspect it may have arisen from a review of reliability/fault data and someone spotting a common theme...
Biting the hand that feeds IT
