Space Shuttle flight manifest
November 1985 plan for space shuttle flights Mission 61B (STS-31) through 61E (STS-34). Notice that canceled Mission 61D was never given an STS number (Spacelab 4, also known as Space Laboratory Science-1, which would reappear in 1987.) August 1988 was the latest they had flights planned, although the manifest was issued monthly, meaning there could be a December 1985 and January 1986 manifest lurking around. This was the latest such plan prior to Challenger that I could find.
Space Shuttle flight manifest
November 1985 plan for space shuttle flights Mission 61B (STS-31) through 61E (STS-34). Notice that canceled Mission 61D was never given an STS number (Spacelab 4, also known as Space Laboratory Science-1, which would reappear in 1987.) August 1988 was the latest they had flights planned, although the manifest was issued monthly, meaning there could be a December 1985 and January 1986 manifest lurking around. This was the latest such plan prior to Challenger that I could find.