This message comes too often to be a failure. And, BTW, there is a NORMAL SOP for that case:
"‐ Check the loadsheet CG, against the ECAM CG. In case there is a discrepancy of more than 2 %, check that the ZFW and the ZFWCG have been correctly inserted in the MCDU, then rely on the ECAM CG. If the difference is less than 2 %, no further action is required. Rely on the ECAM CG."
Once again, it says to check that the ZFW and ZFWCG are correctly inserted, which is totally irrelevant. As I already said, you may enter complete BS outside the aircraft limitations and in most cases get no message. So, the original post question remains open...
Last edited by Romasik; 16th Jan 2013 at 11:14.