Larry Tanner a United Space Alliance orbiter technician installs gap fillers in Discovery's forward and midbody areas.

In NASA Kennedy Space Center’s Orbiter Processing Facility Bay 3, Larry Tanner, a United Space Alliance orbiter technician, installs gap fillers in Discovery’s forward and midbody areas. This work is being performed after two gap fillers were found protruding from the underside of Discovery on the July 26 Return to Flight mission, STS-114. New installation procedures are being developed to ensure the gap fillers stay in place and do not pose any hazard on re-entry to the atmosphere.