Challenger_Disaster

Challenger_Disaster - [1] Challenger Discussion - Overview...

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Challenger Discussion - Overview Disaster Communication Gaps Technical Problem Unethical Conduct
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Disaster Basics The Challenger broke apart 73 seconds after launch on January 28, 1986. This was to be the tenth mission using the Challenger shuttle. Christa McAuliffe was to be the first teacher in space.
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Main Technical Causes Failure of an O-ring seal in the right solid rocket booster Pressurized hot gas leaked through the seal Cold temperatures at launch (36° F) made O-rings harder and less capable of sealing
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[2] Shuttle Tank and Boosters Cross-section of Booster Field Joint
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Ethics Failures Memos had been written for almost ten years prior to the disaster warning of O- ring design problems. Hot gas had leaked past the seals on previous flights; temperature was thought to be a factor. Engineers at Morton Thiokol (MTI), the company contracted to build the solid rocket booster, were particularly concerned.
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Excerpt of Memo by John Miller (Marshall) - 1979 [2]
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Excerpt of Memo by Brian Russell(MTI)- 1985 [2]
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Excerpt of Memo by Roger Boisjoly (MTI) 1985 [2]
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Ethics Failures, cont. Engineers held a teleconference with
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Challenger_Disaster - [1] Challenger Discussion - Overview...

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