TITLE: GCN CIRCULAR NUMBER: 21893 SUBJECT: Fermi-GBM GRB misclassifications DATE: 17/09/17 15:35:56 GMT FROM: Rachel Hamburg at UAH S.Poolakkil (UAH) and R. Hamburg (UAH) report on behalf of the Fermi GBM Team: "The following Fermi Gamma-ray Burst Monitor (GBM) triggers, tentatively classified as GRBs, were in fact likely due to local particles: 527235585 / 170916264 / 06:19:40.96 UT 527241578 / 170916333 / 07:59:33.49 UT 527247539 / 170916402 / 09:38:54.81 UT 527321238 / 170917255 / 06:07:13.97 UT "