Transportation

Protesters hold up their hands to symbolize pro-democracy demonstrators' five demands during a demonstration in the financial district in Hong Kong, Wednesday, Nov. 20, 2019. Hong Kong schools reopened Wednesday after a six-day shutdown but students and commuters faced transit disruptions as the last protesters remained holed up on a university campus. (AP Photo/Kin Cheung)

FILE - In this Oct. 22, 2013, file photo, Bay Area Rapid Transit passengers wait for a BART train to depart the Fruitvale station in Oakland, Calif. A California transit chief said a man was stabbed to death Tuesday, Nov. 19, 2019, during a fight between two men on a San Francisco Bay Area commuter train. (AP Photo/Ben Margot, File)

FILE- In this Jan. 25, 2019, file photo a Southwest Airlines jet moves on the runway as a person eats at a terminal restaurant at LaGuardia Airport in New York. The National Transportation Safety Board is meeting Tuesday, Nov. 19 in Washington to consider the cause of a deadly engine failure on a Southwest Airlines flight last year. The incident killed a passenger who was blown partly out of the plane when a piece of the engine shattered the window next to her. (AP Photo/Julio Cortez, File)

From left; Boeing Commercial Airplanes president and CEO Stanley A. Deal, Air Astana chief planning officer Alma Aliguzhinova and Air Astana chief operating officer Anthony Regan pose after a news conference at the Dubai Airshow in Dubai, United Arab Emirates, Tuesday, Nov. 19, 2019. Kazakhstan's national carrier Air Astana announced Tuesday a letter of intent to purchase 30 of Boeing's 737-8 Max jets for its new budget airliner FlyArystan. (AP Photo/Jon Gambrell)

Airbus CEO Guillaume Faury, center, shakes hands with Sheikh Ahmed bin Saeed Al Maktoum, the chairman and CEO of the Dubai-based long-haul carrier Emirates, at the Dubai Airshow in Dubai, United Arab Emirates, Monday, Nov. 18, 2019. The Dubai-based airline Emirates announced Monday a new order for 20 additional wide-body Airbus A350-900 planes in a deal worth $6.4 billion. This brings the airline's total order for the aircraft to 50 Airbus A350s costing $16 billion at list price. (AP Photo/Jon Gambrell)

FILE - In this Sept. 23, 2017 file photo, will.i.am attends the 27th annual EMA Awards at Barker Hangar in Santa Monica, Calif. The Black Eyed Peas musician has accused a flight attendant from Australia’s national carrier Qantas of being racist and rude to him on a flight. The musician said he was met by police at Sydney Airport on Saturday, Nov. 16, 2019, after an incident with an “overly aggressive flight attendant” who he says was upset with him because he couldn’t hear her through his noise-cancelling headphones. Qantas said in a statement it rejected the allegation that the incident had anything to do with race and said it was a “misunderstanding.” (Photo by Richard Shotwell/Invision/AP, File)

File-This Aug. 15, 2019, file photo shows dozens of grounded Boeing 737 MAX airplanes crowd a parking area adjacent to Boeing Field in Seattle. Boeing is settling more of the roughly 150 lawsuits filed by families of passengers killed in two crashes of the 737 Max jet. A Seattle law firm said Friday, Nov. 15, 2019, it settled four cases involving passengers on the Lion Air Max that crashed off the coast of Indonesia in October 2018. On Thursday, a judge approved settlements of nine other cases.(AP Photo/Elaine Thompson, File)