A Chicago alderman says city-employed airport security officers "should not be doing the dirty work for the friendly skies airline".
Dao's attorneys at the law firm Corboy & Demetrio said they would hold a news conference on Thursday to discuss the petition.
But the public relations damage was done, with calls for boycotts and the US Department of Transportation promising to review the airline's actions. He said Dao was not in the wrong.
It was a system failure.
Further, Munoz said United will not use law enforcement to remove on-board passengers in the future, as was the case on Sunday evening. He also said he had no plans to resign.
United CEO Oscar Munoz's non-apology for "having to re-accommodate" the passengers didn't help much either. Munoz said Wednesday that he had left a message for Dao.
"I continue to be disturbed by what happened on this flight and I deeply apologize to the customer forcibly removed and to all the customers aboard", CEO Oscar Munoz said. The airline operates four non-stop flights from O'Hare to Louisville each Sunday, and there was still one flight remaining that the crew members could have gotten on.
The incident repulsed United customers across the country. "I don't think our police department should be cooperating with that".
His daughter says the 69-year-old is the father of five children.
Has United Airlines implemented any policy changes as a result of this incident?
Likewise, the Chicago Aviation Department has said only that one of its employees who removed Dao did not follow proper procedures and has been placed on leave. This will never happen again.
Chris Christie unloaded on United Airlines Wednesday in the wake of the forced removal of a passenger from a Chicago flight earlier this week, slamming the airline's attitude as "awful" and calling on the Trump administration to act. "No one should ever be mistreated this way", Munoz said. Screaming can be heard on the videos as Dao is dragged from his window seat and across the armrest, but he is not seen fighting with the officers. Those documents are often the first steps toward a lawsuit.
Surveillance video recordings depicting the boarding of all passengers.
They're also seeking cockpit voice recordings, incident reports and other materials.
Three people got off the plane, but the man in the video refused, reportedly telling officials he was a doctor and needed to treat patients the next day.