This first space shuttle concluded its maiden voyage on April 14, 1981
[DOC] [TLE] April 14, 1981, Landing of First Space Shuttle Mission | NASA [PAR] On April 14, 1981, the rear wheels of the space shuttle orbiter Columbia .... for its 
liftoff on its maiden voyage, the STS-1 mission, the first flight of the Space Shuttle 
Program.