August 23, 2004 — Investigators continue to believe that the July 27, 2004 incident in Luraville, Florida was caused when an operator was about to fill oxygen into a scuba cylinder that was not designed for oxygen use, and most probably the valve and/or cylinder had not been purged of all organic matter. Ignition from the fall caused the organic matter in the cylinder to burn, which caused the resulting fire and explosion.

Investigators have determined that the cylinder was made of aluminum alloy 6061. Investigators have ruled out the cylinder as a cause of the explosion.