April 29, 2011 Allard Beutel Kennedy Space Center, Fla. 321-867-2468 allard.beutel@nasa.gov Joshua Buck Headquarters, Washington 202-358-1100 jbuck@nasa.gov Kyle Herring Johnson Space Center, Houston 281-483-5111 kyle.j.herring@nasa.gov RELEASE: 11-130 NASA RESETS SHUTTLE ENDEAVOUR'S LAUNCH FOR NO EARLIER THAN MAY 2 WASHINGTON -- NASA managers met Friday to discuss the status of space shuttle Endeavour's launch to the International Space Station. The launch was postponed because of a heater issue associated with the shuttle's hydraulic power system. The next launch attempt will be no earlier than May 2. The shuttle has three Auxiliary Power Units (APUs) that provide hydraulic power to steer the vehicle during ascent and entry. NASA launch commit criteria and flight rules require all three APUs to be fully operational for launch. Endeavour's external fuel tank was drained of more than 500,000 gallons of liquid hydrogen and oxygen so engineers can access the area Saturday and evaluate the issue with APU 1. For the latest information about the STS-134 mission and its crew, visit: http://www.nasa.gov/shuttle For information about the International Space Station, visit: http://www.nasa.gov/station -end- To subscribe to the list, send a message to: ksc-subscribe@newsletters.nasa.gov To remove your address from the list, send a message to: ksc-unsubscribe@newsletters.nasa.gov
