TITLE: GCN CIRCULAR NUMBER: 19965 SUBJECT: Fermi GBM trigger 496791348/160928900 is not a GRB DATE: 16/09/28 22:22:51 GMT FROM: C. Michelle Hui at MSFC/Fermi-GBM C. M. Hui (MSFC) report on behalf of the Fermi GBM Team: The Fermi Gamma-ray Burst Monitor (GBM) trigger 496791348/160928900 at 21:35:44 UT on 28 Sep 2016, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to local particles.