I've been wondering that myself, so I looked at the latest type certificate sheets and it appears that someone in Bellingham, WA has picked up the J5, PA-12 and PA-14 type certificates. There are three different Corporation names FS 2001, FS2002 and FS2003, all at 709 Dupont Street, P. O. Box 1678, in Bellingham, 98227.
I can't find anything on the web about any of them, perhaps someone who lives in the area might drop by and ask?