TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4007 SUBJECT: Possible GRB 050922 detected by INTEGRAL DATE: 05/09/22 15:31:35 GMT FROM: Sandro Mereghetti at IASF/CNR D.Gotz, S.Mereghetti (IASF, Milano) S. Shaw, N. Mowlavi, M. Beck, J. Zurita Heras (ISDC, Versoix) and J. Borkowski (CAMK, Torun) on behalf of the IBAS Localization Team report: A possible GRB triggered IBAS at 13:43:18 UT with coordinates (J2000) R.A. = 271.1541 Dec. = -32.0235 with an uncertainty of 3.5 arcmin radius (90% c.l.). The trigger significance was below the threshold for automatic alert delivery. A preliminary analysis shows a spectrum consistent with an X-ray flash and a fluence (20-200 keV) is 1E-7 erg/cm^2. However, due to the position in the galactic bulge and the soft spectrum, we cannot exclude that the trigger is due to an uncatalogued Galactic source. This message can be cited.