Dec 19 1987
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(New page: An apparent technical problem forced the cancellation of the test firing of the redesigned 126-foot-long, 1.2-million-pound Space Shuttle solid rocket motor, Development Motor-9 (DM-9)...)
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An apparent technical problem forced the cancellation of the test firing of the redesigned 126-foot-long, 1.2-million-pound Space Shuttle solid rocket motor, Development Motor-9 (DM-9), to be used in the first post-Challenger flight. The failed test took place at Morton Thiokol's Wasatch Facility near Brigham City, Utah. The test was canceled one second before ignition. This was the second of at least five full-scale tests planned to check the operation of the booster's redesigned o-ring joints. The first full-duration test firing of a redesigned motor took place on August 30, 1987. (NASA Release 87-183; P Inq, Dec 20/87; W Post, Dec 20/87)
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