STS083-308-021 (4-8 April 1997) --- Payload specialist Roger K. Crouch and astronaut Michael L. Gernhardt, mission specialist, load boxes as they prepare to deactivate the Spacelab Science Module. Crouch and Gernhardt, along with five other NASA astronauts and a second payload specialist supporting the Microgravity Sciences Laboratory (MSL-1) mission, were less than a fourth of the way through a scheduled 16-day flight when a power problem cut short their planned stay.