NNC - Non Normal Checklist
LEM..
my thoughts...
Firstly - when you're one engine INOP your are already on the way to landing at the nearest suitable - and if you need wing anti-icing.....you need it...you are probably not so bothered about back pressuring the duct, pack and associated stuff on the failed side.
If you have a bleed trip off the Isolation valve is in what position when the packs are in Auto? Closed? Hence Assymetric Wing de/anti-icing = not exactly desirable.
Why can't you open the Isolation valve?...might not be desirable depending on what's caused a bleed trip off to start with..?
Any of that make sense?
