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Start structural assembly of Crew Module
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The contract was awarded to construct the Endeavor.
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Congress authorized Endeavor to replace Challenger
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Start of Final Assembly
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Start structural assembly of aft-fuselage.
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Wings arrive at Palmdale, CA from Grumman.
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Completed final assembly of Endeavor.
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Rollout from Palmdale
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Endeavor delivered to Kennedy Space Center.
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Flight readiness firing occurred.
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First flight (STS-49) launched