The Load Control Assembly-2 has been removed from space shuttle Endeavour's aft section. Located in the orbiter's aft avionics bay 5, the LCA-2 assembly, which feeds power to the fuel line heaters, is believed to have caused the heaters for Endeavour's auxiliary power unit-1 to fail April 29 during the first launch attempt for the STS-134 mission. The assembly will be replaced and systems will be retested before the launch is rescheduled.
Image credit: NASA/Troy Cryder
May 3, 2011