The afternoon sun casts shadows on space shuttle Endeavour's external fuel tank as workers remove the seal from the Ground Umbilical Carrier Plate, or GUCP, on the tank. A hydrogen leak at the location during tanking for the STS-127 mission caused the launch attempts to be scrubbed on June 13 and June 17.
The plate will be examined to determine the cause of the hydrogen leak. Then it will be repaired.
June 24, 2009
Photo credit: NASA/Jack Pfaller