Tom - I was looking for around the web and came across a Plan of the Day for July 11, 1977 for the Francis Scott Key - SSBN 657. I don't know how my eyes found it, but the name Zahn caught my eye. Check this out: http://www.ssbn657.com/images/POD1.jpg
Although I found their ship's roster afterwards and it looks like there was a Michael Zahn, so I am guessing it is not you. I was not sure if you were on another boat before the 617.