Wikipedia:Today's featured article/August 17, 2024

On December 8, 1963, Pan Am Flight 214 crashed near Elkton, Maryland, killing all 81 crew and passengers. Flight 214 had originated at Isla Verde International Airport in San Juan, flying to Friendship Airport near Baltimore, and then took off for Philadelphia. The crash was Pan Am's first fatal accident with the Boeing 707-121, which it had introduced to its fleet five years earlier. An investigation by the Civil Aeronautics Board concluded that the probable cause of the crash was a lightning strike that had ignited fuel vapors in one of the aircraft's fuel tanks, causing an explosion that destroyed the left wing. The exact manner of ignition was never determined, but the investigation increased awareness of how lightning can damage aircraft, leading to new regulations. The crash also led to research into the safety of several types of aviation fuel and into ways of changing the design of aircraft fuel systems to make them safer in the event of lightning strikes.