Eliminating explosions - [control safety]

A TWA Boeing 747 exploded over the Atlantic, near Long Island in the US, killing all 230 passengers on Wednesday 17 July 1996. According to the American NTSB (National Transportation Safety Board) official report, the explosion was likely to have been caused by the ignition of fuel damps in the central fuel tank, probably the result of a spark from a short circuit in the wiring.