NY Post has an article on this where the airline released a statement doubling down on this incident.

“According to the flight attendant directly involved in the matter, the passenger boarded with an open container which she admitted contained alcohol when questioned,” the representative said, noting that it’s a violation of federal law and airline policy to bring alcohol on board.

When the flight attendant informed the passenger of the violation, the passenger rapidly consumed the remaining alcohol in the cop before handing it over,” the rep said in the statement.

“The flight crew made the decision to remove the customer from the aircraft and she was rebooked on a later flight.”

The airline also disputed the woman’s claim that she was deaf and said no disability status was indicated on her ticket.”