Cocoanut Grove fire
Background
Wall coverings and decorative materials had been approved on the basis of tests for ordinary ignition, which showed resistance to combustion from sources such as matches and cigarettes. Decorative cloth was purportedly treated with fire retardant ammonium sulfate upon installation, but there was no documentation that the treatment was maintained at the required intervals. The air-conditioning freon refrigerant had been replaced with the flammable gas methyl chloride because of a wartime shortage.
Fire
!Smoke rises from the Cocoanut Grove
Fire
Many patrons attempted to exit through the main entrance, the same way they had entered. The building's main entrance was a single revolving door, which was rendered useless as the crowd stampeded in panic. Bodies piled up behind both sides of the revolving door, jamming it until it broke. The oxygen-hungry fire then leaped through the breach, incinerating whoever was left alive in the pile. Firemen had to douse the flames to approach the door.