The Nation - News from June 15, 1988

Morton Thiokol Inc. test-fired its redesigned solid rocket motor with no apparent problems, but officials said it could be two weeks before they have all the results. The 122-second horizontal test, conducted at Morton Thiokol’s Wasatch Operations plant west of Brigham City, Utah, was the fourth of five tests required to qualify major design features of the solid fuel booster before the shuttle program, grounded after the 1986 Challenger disaster, can resume.