switching the bats off is a different scenario ,
the outcome may appear the same .. the bats are disconnected from the bat bus ,
but in the bat 1 (2) fault scenario the system has detected a thermal runaway in the battery and obviously in that situation you could very shortly loose the hot bat bus for whichever bat is failing ,
hot bat bus feeds back up dc to secs ,elacs and adirus ,
hence i suspect this is the avenue to influence the comment
FUEL CONSUMPT INCRSD
This message is triggered when the failure (or combination of failures) affects the nominal aerodynamic characteristics of the aircraft.
i will try and dig a bit deeper in the manuals to explain any change in flight characteristics with loss of back up dc power , but dont expect a quick answer as im busy with fixing the things .
Last edited by turn and slip; 20th Dec 2014 at 13:39.