Thank you DutchOne for your post, but I did not understand the explanation:
For option 2 it would only make sence if the leak is in the inner side of the SPLIT
I guess you mean INR TANK SPLIT...ON (=SPLIT VALVE CLOSE=INNER TANK OUTBOARD AND INBOARD SECTIONS ARE ISOLATED) is only logical if the leak is in the INBOARD SECTION of Inner Tank.
1. Why does it make sense ( or is logical) to isloate these sections if leak is at the INBOARD SECTION of Inner Tank?
2. Why it does
not make sense to isloate these sections if leak is at the OUTBOARD SECTION of Inner Tank?
3. Regardless at which side the leak is, either inboard or outboard section,
What would be wrong if these sections are isolated as they have their own fuel pumps (Stby and Main Pumps)?
4. Would it be a chance that Airbus forgot to write this step?
Regards