Published January 13, 2015
A transcript of the final radio transmission between Mission Control and space shuttle Columbia, shortly before 9 a.m. EST.
Mission Control: "Columbia, Houston we see your tire pressure messages and we did not copy your last."
Columbia: "Roger, uh, ..." (transmission breaks off after the crew member starts to stay a word begining with the sound "buh.")
https://www.foxnews.com/story/columbias-final-transmission-with-mission-control