October 7, 1995
Web posted at: 10:30 a.m. EDT
KENNEDY SPACE CENTER, Florida (CNN) -- NASA scrubbed the launch of the space shuttle Columbia Saturday morning, 20 minutes after its scheduled 9:41 a.m. EDT lift-off time. The no-go was the fourth for Columbia since its original launch date of September 28.
A computer software glitch in the shuttle's master events controller, which controls parts of the launch process, caused the latest delay. NASA officials say it will be at least 48 hours before the next launch attempt.
Columbia's three previous delays were caused by a fuel leak, Hurricane Opal and a problem with the nosegear's hydraulic system.
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