Well first that is a different ssd and the retired block count was greater than the threshold aloted for that particular SSD and controller.
Again just because there are retired blocks does not mean the ssd is bad or even in danger of failing. There is reserve space on the drive that is activated when there are bad blocks. You need to look at media wearout indicator and available reserve space. if both of these are good you should not be worried. if you see the retired block steadily increasing and passing the threshold then the drive would need to be replaced. Until then it is not really a problem.
