Rainer Gerhardsfield notes on systems

Engineering notebook

Sunday Space Shuttle Launch Scrubbed!

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launch, nasa, scrub, sts-122
Now it is official - today's space shuttle Atlantis launch has been scrubbed due to a problem with ECO sensor number three.

Quote from the NASA home page:
Today's launch of space shuttle Atlantis has been officially scrubbed. It was announced on NASA TV at 7:24 a.m. EST.

Of the four engine cutoff sensors, ECO sensor number three gave false readings. 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.

Atlantis' scheduled launch on Thursday was delayed after two of the four engine cutoff, or ECO, sensors in the shuttle's external fuel tank gave false readings. A third sensor failed after the tank was drained of fuel. The sensor system is one of several that protect the shuttle's three main engines by triggering their shut down if fuel runs unexpectedly low.

Archived comments

Rainer

Thanks for the kind words. And, yeah, you are right. I'll wrap up but then I think I won't post that much more until the press conference, which I do not expect until later this evening. Of course, if something new and unexpected comes up, I may change my mind.

A shame it didn't work out...

Rainer

Armando Perdomo

Well, now I believe that you need to rest a little. You have done an excellent job. Thanks!

Now, I have to change my plans... Let's back to the java world!

Greetings, Armando.