TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2990 SUBJECT: HETE #3667: P60 Observations DATE: 05/01/28 05:20:04 GMT FROM: Derek Fox at CIT Derek B. Fox reports on behalf of a larger collaboration: "We have imaged the in-flight error circle of HETE Alert #3667 in a series of 60-second R-band pointings beginning at 04:41 UT. Visual comparison of these individual images to the Guide Star Catalog (v2.2) reveals no new sources to the R~18 mag limit of that catalog."