A head's up from Athearn for RTR GP60M/GP60B buyers (recent run locos)

Athearn posted this on facebook and I thought I’d post this for some that may not otherwise see it. This seems to only be affecting the recent run of RTR GP60M/B models.

http://www.athearn.com/ProdInfo/Files/Athearn-GP60M-DCC-Bulletin.pdf