GE has converted a BNSF Dash-9-44CW to AC traction with A1A trucks, like the ES44C4. BNSF 616 (ex-Santa Fe) was noted northbound on KCS through Heavener, OK as a trailing locomotive.
Here are some YouTube videos of 616 in her new configuration:
https://www.youtube.com/watch?v=hIbQSLvK4kY" onclick="window.open(this.href);return false;
https://www.youtube.com/watch?v=xJQdLwnphx0" onclick="window.open(this.href);return false;
https://www.youtube.com/watch?v=CmQzZzePzmY" onclick="window.open(this.href);return false;