T' STS-131 crew arrived at t' Kennedy Space Center on Monday ( March 1 ) for a week o' standard prelaunch trainin' and a full-dress launch rehearsal known as t' Terminal Countdown Demonstration Test. Avast, me proud beauty! Space Shuttle Discovery will carry t' Crew and a multi-purpose logistics module filled with science racks t' t' International Space Station. Begad! T' racks will be installed in t' laboratories aboard t' station. Well, blow me down! T' mission has three planned spacewalks, ya bilge rat, with work t' include replacin' an ammonia tank assembly, retrievin' a Japanese experiment from t' station's exterior, and switchin' out a rate gyro assembly on t' S0 segment o' t' station's truss structure.