On this mission , he made the first STS contingency spacewalk , in an attempted rescue of a malfunctioning satellite .
Hoffman made his first space flight as a mission specialist on STS 51 - D , April 12 -- 19 , 1985 , on the Space Shuttle Discovery .
On this mission , Hoffman made the first STS contingency spacewalk , in an attempted rescue of a malfunctioning satellite .
Hoffman made his first space flight as a mission specialist on STS 51 - D , April 12 -- 19 , 1985 , on the Space Shuttle Discovery .