Originally Posted by
back to Boeing
Out of random curiosity. Does this restriction have anything to do with the TWA 800 accident. I accept that that may be lighting a candle to touch paper. But is it boeing covering its arse?
No, it has nothing to do with that. The amount (7700 kg) ensures that the outside engines continue to get fed by the center tank throughout the takeoff and climb. The fact that the maximum zero fuel weight needs to be reduced is true whenever there is center fuel tank present but the main tanks aren't full.