By P.M.W. Körvers.
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Extra resources for Accident precursors : pro-active identification of safety risks in the chemical process industry
Moreover, a similar mode of analysis allows a better judgement of the results of the designed method. Variety in the results is caused by the difference among the companies or the design. By keeping the variety among the companies as small as possible, the quality of the design can be better judged. If the results are similar, replication logic will take place. , 1976). Replication logic increases the extent to which findings can be generalized. Another factor increasing the extent to which findings can be generalized (external validity), is the availability of more than 18,000 case histories.
The chain of events in the operational process, leading to the accident is briefly described in the Facts database. However, whether these events were present before the accident occurred is not indicated. So, to retrieve possible deviations and their 33 frequency, the underlying data has to be consulted. The ‘underlying data,’ used for this analysis includes all available information from whatever source. From working and using the database in respect to this study, some general and more specific recommendations were derived: - Increase the accessibility of FACTS by converting the database from a DOS to a Windows environment.
Moreover, emergency escape exits had been closed or blocked but fortunately the event did not result in any personal injury. Before the accident, the bearing had overheated on a number of occasions and nearly always broke and had to be replaced. However, the recommendations of the report of the accident investigation were not aimed at preventing the re-occurring overheating issue, but amongst others on improving training procedures for the operators to spot the wrong valve settings and establishing procedures and rules to communicate with the repair firms.