Swissair Flight 111 cause conflagration
Probable cause
The Transportation Safety Board of Canada investigation identified eleven causes and contributing factors of the crash in its final report. The first and most prominent was:Aircraft certification standards for material flammability were inadequate in that they allowed the use of materials that could be ignited and sustain or propagate fire. Consequently, flammable material propagated a fire that started above the ceiling on the right side of the cockpit near the cockpit rear wall. The fire spread and intensified rapidly to the extent that it degraded aircraft systems and the cockpit environment, and ultimately led to the loss of control of the aircraft.: 253
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