No 197 was assigned to NASGI from 1963 to 1968 according to history from Pima Air Museum.  I was there in 1999 and didn't realize at the time that I probably rode in it a few times.  197 shows up in the NAS Quonset Pt Cruise.  Elseware No. 199 shows up. Pima has a picture of 199 in their website.  197 was in very good shape with all ASW equipment intact.  Externally anyway.-- Hank Hegrat