Nov. 24, 2010 Allard Beutel Kennedy Space Center, Fla. 321-867-2468 allard.beutel@nasa.gov Stephanie Schierholz Headquarters, Washington 202-358-1100 stephanie.schierholz@nasa.gov Kyle Herring Johnson Space Center, Houston 281-483-5111 kyle.j.herring@nasa.gov RELEASE: 10-313 NASA SETS SHUTTLE DISCOVERY'S LAUNCH FOR NO EARLIER THAN DEC. 17 WASHINGTON -- NASA managers have targeted space shuttle Discovery's launch for no earlier than Dec. 17. Shuttle managers determined more tests and analysis are needed before proceeding with the STS-133 mission. As a result, the launch status meeting planned for Monday, Nov. 29, has been postponed and will be rescheduled. The Program Requirements Control Board (PRCB) reviewed on Wednesday repairs and engineering evaluations associated with cracks on two 21-foot-long, U-shaped aluminum brackets, called stringers, on the shuttle's external tank. Managers decided the analysis and tests required to launch Discovery safely are not complete. The work will continue through next week. The next status review by the PRCB will be Thursday, Dec. 2. If managers clear Discovery for launch on Dec. 17, the preferred time is approximately 8:51 p.m. EST. For STS-133 crew and mission information, visit: http://www.nasa.gov/shuttle -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