I find that my response in that Thread is for fifty or more years for a White-Fronted Amazon.
What is your concern regarding life span? With that information, I can address your question.
NOTE: We have spent a long life working with older Amazons who come to us very ill, commonly abused and with no want to every be around let alone love another Human. If we are lucky, we get a few years, but each have known that they had been loved deeply when they pass. And, whether it was a few weeks, a couple of months, a couple of years or longer, each one created a huge and loving place in our hearts, which we will forever and happily carry.
As an Amazon Snob, to me there are few delights beyond being loved by a Parrot that wants little more from me.