AdvertisementA Brief History Of Civilian Planes That Have Been Shot DownJuly 17, 2014Greg MyrefacebookEmailMourners carry coffins through the streets of Tehran, Iran, on July 7, 1988, during a mass funeral for victims of a downed Iran Air flight. The U.S. Navy shot down the civilian plane in the Persian Gulf, killing all 290 onboard, after mistaking it for an Iranian warplane. (AP)