GCN Circular 3772
C. Markwardt (GSFC/UMD), S. Barthelmy (GSFC), J. Cummings (GSFC/NRC) J. Kennea (PSU), C. Pagani (PSU) on behalf Swift team: We report that trigger number 149131, previously designated GRB 050805B, is retracted. This trigger is consistent with a cosmic ray shower event in the detector, and a simultaneous random image fluctuation. Ground analysis of the XRT data does not show any X-ray source in the field. We therefore conclude from the XRT data that Trigger 149131 is not a GRB. As a separate note, the BAT position notice was delayed by ~42 seconds on board the spacecraft, due to a backlog of TDRSS telemetry caused by a commanded procedure.