Comments: Jul 30, from Jari Savolainen - "Also been checking Diego Garcia 4319 randomly and no luck." Also Jul 30, from Anker Petersen (editor of DSWCI's DX-Window) - "According to my notes based upon listening around the world, AFN Diego Garcia has not been heard since Dec 2014 on its two frequencies."
Thanks fellows for your helpful feedback! So yes, AFN for the time being (unless they fix a shortwave transmitter) is no longer broadcasting via shortwave. (Ron Howard)
(DSWCI/DX Window 536-18 Aug)