American Airlines owns a luxury townhouse in London worth tens of millions of dollars, according to its parent company's bankruptcy filing.
Reuters reported on Wednesday that experts estimate the property in one of London's most exclusive neighborhoods could be worth as much as $30 million.
Senior executives have used the five-bedroom home in Kensington, the news service reported.
American said it bought the home 20 years ago, when prices were lower.
But the airline is drawing fire because of the home.
"In this bankruptcy, AMR's executives should lose their house," the president of the Transport Workers Union told Reuters.
American said it is reviewing all of its real estate holdings.
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