Plane crashes

Han Bo, chairman of the China Adventure Association, talks about an insole found during an exploratory dive at the crash site of a fighter plane from the legendary Flying Tigers group of American pilots that crashed in a lake during World War II at his office in Beijing on Saturday, Sept. 5, 2020. The Flying Tigers, who were sent to China in 1941 by President Franklin D. Roosevelt before Washington joined the war, have long been one of the most potent symbols of U.S.-Chinese cooperation. The Tigers fought Japanese invaders from December 1941 until they were absorbed into the U.S. military the following July. (AP Photo/Ng Han Guan)

FILE — This Jan. 17, 1966, file photo, shows part of the wreckage of the USAF B52 that crashed in Palomares, Spain, after a mid-air collision with a KC 135 aerial tanker during refueling. A federal appeals court heard arguments Wednesday, Sept. 2, 2020, but did not issue a ruling, on whether there were flaws in data used by U.S. officials to deny benefits to veterans who say they became ill from radiation exposure while responding to a 1966 accident involving American hydrogen bombs in Spain. Yale Law School students are representing veterans in a class-action lawsuit. (AP Photo, File)

Democratic presidential candidate former Vice President Joe Biden speaks in Wilmington, Del., Wednesday, Sept. 2, 2020, about school reopenings. (AP Photo/Carolyn Kaster)

Democratic presidential candidate former Vice President Joe Biden speaks in Wilmington, Del., Wednesday, Sept. 2, 2020, about school reopenings. (AP Photo/Carolyn Kaster)

FILE - A Boeing 737 MAX jet heads to a landing at Boeing Field following a test flight in a Monday, June 29, 2020 file photo, in Seattle. Boeing is reporting more weak numbers for airplane orders and deliveries. The big aircraft maker said Tuesday, Aug. 11, 2020 it it sold no new airliners in July, and customers canceled orders for 43 of its 737 Max jet. That's the plane that has been grounded for more than a year after two crashes killed 346 people. (AP Photo/Elaine Thompson, File)

FILE - In this Jan. 8, 2020, file photo, debris at the scene where a Ukrainian plane crashed in Shahedshahr southwest of the capital Tehran, Iran. Iran has retrieved some data, including a portion of cockpit conversations, from the Ukrainian jetliner accidentally downed by the Revolutionary Guard forces in January, killing all 176 people on board, an Iranian official said Sunday, Aug. 23, 2020. (AP Photo/Ebrahim Noroozi, File)

People stand by the debris of the Air India Express flight that skidded off a runway while landing in Kozhikode, Kerala state, India, Saturday, Aug. 8, 2020. The special evacuation flight bringing people home to India who had been trapped abroad because of the coronavirus skidded off the runway and split in two while landing in heavy rain killing more than a dozen people and injuring dozens more. (AP Photo/Shijith Sreedhar)

The Air India Express flight that skidded off a runway while landing at the airport in Kozhikode, Kerala state, India, Saturday, Aug. 8, 2020. The special evacuation flight bringing people home to India who had been trapped abroad because of the coronavirus skidded off the runway and split in two while landing in heavy rain killing more than a dozen people and injuring dozens more. (AP Photo/C.K.Thanseer)

FILE - In this Thursday, Dec. 20, 2018, file photo, investigators work the scene of a small plane crash in a city park which killed all four people on board, in northwest Atlanta. The National Transportation Safety Board says in a report that Tennessee businessman Wei Chen, who was flying the plane, likely lost control after becoming disoriented in cloudy weather after taking off. (AP Photo/John Amis, File)

FILE - This Feb. 12, 2018 file photo, Alaska state Rep. Gary Knopp waits during a break in a floor session in which the House failed to elect a permanent speaker in Juneau, Alaska. The Alaska House Majority says Knopp was killed in the mid-air collision of two planes near Soldotna on Friday, July 31, 2020. Alaska State Troopers would not confirm Knopp's death beyond saying the mid-air collision near the airport in Soldotna was a fatal crash. (AP Photo/Becky Bohrer, File)