Thirteen of these were the result of human error. Additionally, there was a 339% increase in the total number of injuries. After a record low of 31 injuries in 1998, the number jumped to 136 in 1999, with 73% of these attributable to human error.
For every 16 incidents reported in 1999, there was one injury. This compares to one injury for every 65 deaths in 1998. Based on these figures, the odds of being injured during a boiler or pressure vessel incident were never greater than in 1999.
Human error was the leading cause of accidents, followed by low-water conditions. The data was compiled from reports submitted by National Board Jurisdictional authorities and by authorized insurance agencies.