The launch of a Boeing
Delta IV rocket was scrubbed in the final minutes of the countdown
today from Cape Canaveral Air Force Station, Fla.

At T-minus three minutes and seven seconds, a hold was called as an alarm
triggered the automated launch system to discontinue the count.

The launch team attempted to address the alarm and perform an additional
launch attempt at the end of the 77-minute window. The launch window closed
before the team was able to complete all the recycle tasks.

The next launch attempt will be Sunday Mar. 9 at 6:43 p.m. EST.

A Boeing Delta IV Medium launch vehicle is scheduled to launch the Defense
Satellite Communications System spacecraft, DSCS III A3 for the U.S. Air
Force.

Notes to Editors

A launch viewing site for the media will be available on the NASA
Causeway. Media should meet at the South gate of CCAFS on Mar. 9 no later
than 5:00 p.m. EST.

A Boeing electronic media kit containing mission information is available
at:
http://www.boeing.com/defense-space/space/delta/delta4/dscs_iii_a3/.

Boeing will provide a Web cast of the launch at:
http://www.boeing.com/delta.

Boeing will broadcast the launch via satellite throughout the continental
U.S. at:

     AMC 2, C Band Analog, Transponder 4C
     Orbital Location: 85 degrees West
     Bandwidth: 36MHz
     Uplink Frequency: 6005 Vertical
     Downlink Frequency: 3780 Horizontal
     Audio: 6.2, 6.8 and 7.2

For updated launch information, call the Boeing launch hotline at
(714) 896-4770.

A unit of The Boeing Company, Integrated Defense Systems is one of the
world’s largest space and defense businesses. Headquartered in St. Louis,
Boeing Integrated Defense Systems is a $23 billion business. It provides
systems solutions to its global military, government and commercial customers.
It is a leading provider of intelligence, surveillance and reconnaissance; the
world’s largest military aircraft manufacturer; the world’s largest satellite
manufacturer and a leading provider of space-based communications; the primary
systems integrator for U.S. missile defense; NASA’s largest contractor; and a
global leader in launch services.