From the NY Times..<br /><br />NASA Reviews Mix-Up That Doomed Capsule<br />By KENNETH CHANG<br /> <br />Published: October 16, 2004<br /><br /><br />Five years ago, after two NASA missions to Mars were doomed by elementary mistakes - a software glitch and a mix-up between English and metric units - the space agency devised more elaborate pre-launching review procedures to safeguard future missions. Now the agency is trying to figure out how an equally embarrassing error eluded the review process, apparently resulting in the crash of the Genesis space capsule in the Utah desert last month. <br /><br />In this case, four switches that were to deploy the capsule's parachutes were installed upside down, the parachutes never opened and the capsule plunged to the ground at nearly 200 miles an hour. NASA scientists are now trying to salvage the solar particles it gathered in its three-year, $264 million mission.<br /><br />"One of the questions we have to answer is, How did we not catch this?" Dr. Michael G. Ryschkewitsch, chairman of the NASA board investigating the accident, said in a telephone news conference yesterday. "Since Genesis was being assembled around the time of the Mars failures, there were a number of additional reviews. We are trying to understand in detail what was looked at and exactly what happened there. We're not yet prepared to comment on that."<br />The switches were simple devices consisting of weights attached to springs. The force of deceleration as the capsule re-entered the atmosphere was to stretch the springs and close an electric circuit. When the deceleration slowed, the switch was to have reopened, a signal that should have told the capsule to begin the landing process. A small initial parachute was to have popped out at 108,000 feet and six minutes later, a 35-foot-wide parafoil.<br /><br />But because of the upside-down installation of the switches, the switches did not close, just as a bathroom scale does not work if flipped. <br />Like the failed 199 <div class="Discussion_UserSignature"> <font size="4">Dave..</font> </div>