Accident sequences sensitive to human errors

A Technical Committee Meeting was held by the International Atomic Energy Agency. The meeting was intended to review current operating experience to identify accident sequences involving human errors; to survey, based on probabilistic safety assessment (PSA) results, dominant core damage accident sequences where human errors have a relevant contribution; and to collect information on accident sequences in operator training, including experience with simulator training. It was agreed that more comprehensive reporting schemes have to be considered to collect human error information. PSA insights combined with operating experience have been considered a valuable source of information for identifying some of the human interactions and for appraising their plant impact. Finally, it was stated that there are still major difficulties to use simulators to train operators for severe accidents. (author)