Vernon,
He asked about Lionel Archives, not the OGR Forum.
Yes, that happens a lot for me. I think the problem is that Lionel only creates one data set for a particular engine that might have been produced in multiple road names. Therefore, it might be better to search for something like ALCo FA, or other engine designation, rather than a particular part number. You might find the info you're looking for under a different road name. E.g., when I put in ALCo FA, the Lionel search engine returned 56 products; unfortunately, none with that part number.
Chuck