Engine cutoff sensor delays Shuttle STS-122 again

Another false reading on an ECO, an engine cutoff sensor, this morning has resulted in NASA management delaying the launch of STS-122 again. It appears NASA is looking for an early January 2008 launch date now. STS-122 was originally scheduled to launch on December 6th. That launch date was then pushed out to Saturday and Sunday respectively. But the ECO sensor failure this morning has now placed the launch of STS-122 with its Columbus module payload into January at best.

A NASA press release (12/9/07) stated:

One of the four engine cutoff, or ECO, sensors inside the liquid hydrogen section of the tank gave a false reading. NASA’s current Launch Commit Criteria require that all four sensors function properly. The sensor system is one of several that protect the shuttle’s main engines by triggering their shut down if fuel runs unexpectedly low.

The space shuttle Atlantis is seen on pad 39A as the sun sets, Friday, Dec. 7, 2007, at NASA’s Kennedy Space Center. Image credit: NASA

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~ by tellinghistory on December 9, 2007.

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