	At mission conclusion, Wang traveled over 2.9 million miles in 110 Earth orbits, and logged over 168 hours in space. By all accounts, it was a successful mission. However, the mission had a close call, STS-51B mission commander Overmyer discovered while serving on the "Challenger" disaster investigation team that 51-B had had a similar problem with its O-rings during the launch. Morton Thiokol engineers told STS-51B crew, Don Lind that "you all came within three-tenths of one second of dying".