Air France Flight 4590 — A Strip of Metal on the Runway, Concorde Down at Gonesse

On 25 July 2000, Air France Flight 4590, a Concorde chartered to carry German tourists from Paris to New York, ran over a strip of titanium lying on the runway during its takeoff roll, burst a tyre, and caught fire; less than two minutes later it crashed into a hotel in the suburb of Gonesse, north-east of Paris, killing all 109 people aboard and four on the ground — 113 in total. It was the only fatal crash in the supersonic airliner’s history, and it ended the type’s career within three years.

The aircraft, registration F-BTSC, was operating a non-scheduled charter from Charles de Gaulle airport for 100 passengers, most of them German cruise-ship clients, with nine crew. As it accelerated toward takeoff at roughly 16:42 local time, it ran over a thin titanium wear strip that had fallen from a Continental Airlines DC-10 that had departed the same runway minutes earlier. The strip cut a tyre on the left main gear; a large fragment of disintegrating rubber struck the underside of the wing with enough force to rupture a fuel tank. The leaking fuel ignited. With the aircraft already past the speed at which the takeoff could safely be abandoned, the crew lifted off, but a loss of thrust on the two left-side engines, the trailing fire, and landing gear that would not retract left them unable to climb or accelerate. The Concorde struggled into the air, lost speed, banked, and went down.

France’s Bureau d’Enquêtes et d’Analyses pour la sécurité de l’aviation civile (BEA) investigated and published its final report in 2002. It traced the disaster to the titanium strip — debris from the preceding DC-10 — which burst the tyre, and to the chain of mechanical events that followed: tyre fragments rupturing the fuel tank, ignition of the spilled fuel, and the consequent loss of thrust on engines 1 and 2. The finding was mechanical in mechanism but rooted in a foreign object that should never have been on the runway, and the report also drew attention to the Concorde’s known vulnerability of its tyres and its unprotected wing fuel tanks.

The legal reckoning came a decade later. In 2010 a French court found Continental Airlines and one of its mechanics criminally responsible for the part their aircraft’s lost component played in the crash; in 2012 an appeals court overturned the criminal convictions while leaving Continental liable for a share of the civil compensation. The Concorde fleet, grounded after the crash and briefly returned to service following safety modifications, was retired in 2003.