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Same article: > By July 9, it is transpired that investigators sifting through the wreckage of the doomed rocket had found critical angular velocity sensors, D
by greglindahl 8y ago
Same article:
> By July 9, it is transpired that investigators sifting through the wreckage of the doomed rocket had found critical angular velocity sensors, DUS, installed upside down. Each of those sensors had an arrow that was suppose to point toward the top of the vehicle, however multiple sensors on the failed rocket were pointing downward instead.
- WalterBright 8y agoThis is why the guy who inspects and signs off on the work must not be the same guy who does the work. Yes, the article confirms what I am talking about.
- ridgeguy 8y agoBackwards installation of G-switches crashed the Genesis probe on its return to earth [1]. [1] https://en.wikipedia.org/wiki/Genesis_(spacecraft)#Mishap_Investigation_Board_(MIB) https://en.wikipedia.org/wiki/Genesis_(spacecraft)#Mishap_In...
- WalterBright 8y agoFrom the photo of the switch, I'd say the package design could use improvement. The orientation of it is not obvious.
- ridgeguy 8y agoJust so. Twenty minutes of a designer role-playing an assembly tech installing those components (with the mindset of trying to fail) might have gotten us a "this can only fit one way" result.
- hinkley 8y agoThis part was news to me: > On January 6, 2006, Ryschkewitsch revealed that a pre-test procedure on the craft was skipped by Lockheed Martin, and he noted that the test could have easily detected the problem.