MEL 30-11-01A
I noticed that in A320 MEL 30-11-01A "Wing anti-ice control valve inoperative in the open position": Only the RH wing anti-ice valve may be inoperative in the open position for dispatch. Does anyone know the reason? The Left side wing anti-ice valve is not allowed to be kept on open position because the APU bleed valve is upstream of the cross-bleed valve? Thank you very much.