Problem solved..... BTW I did change the password as I had access to the root via sudo, however it still instisted that the account had expired. Then I realised...
I rolled out sudo (1.7.2p7) to my AIX system (6100-06-01-1043) some time ago. Because I was using "sudo su -" I did not update my root password before it expired as a result of maxexpire.
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