TITLE: GCN CIRCULAR NUMBER: 1913 SUBJECT: 030228: NOT A GRB DATE: 03/03/01 21:21:53 GMT FROM: Sandro Mereghetti at IASF/CNR S.Mereghetti for the IBAS Localization Team communicates: Offline analysis of the INTEGRAL data regarding the possible GRB detected on 2003-02-28 at 21:52:44.4008 UTC (IBAS Alert Packet n.129) reveal that this trigger was a false event not related to a GRB.