TITLE: GCN CIRCULAR NUMBER: 40146 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 766474855/250416237 is not a GRB DATE: 25/04/16 07:15:28 GMT FROM: Marianna Dafčíková at Masaryk University <500025@mail.muni.cz> M. Dafcikova (MUNI) reports on behalf of the Fermi Gamma-ray Burst Monitor Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 766474855/250416237 at 05:40:50.07 UT on 16 April 2025, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to SAA entry."