United Airlines CEO Oscar Munoz took his contrition crusade to Washington, D.C., Tuesday.

Munoz and United President Scott Kirby appeared before the U.S. House of Representatives' Transportation & Infrastructure Committee to explain, among other things, how David Dao came to be dragged off United Express Flight 3411 on April 9 to make room for four Republic Airline crew members who needed to get to Louisville, Kentucky, to operate a United Express regional flight the next day.

Munoz and Kirby appeared before the committee along with key executives from other major carriers, including American Airlines (Nasdaq: AAL), Southwest Airlines (NYSE: LUV) and Alaska Airlines (NYSE: ALK).

Munoz, in his opening statement, struck an apologetic note — as he has many times in recent days — about the Flight 3411 incident and his immediate response the day after Dao was dragged from the plane. In a memo to employees the next day, Munoz called Dao "belligerent" and commended employees for flying right.

Read more at the Denver Business Journal: http://bit.ly/2pYs8sY