2.1 Occurrences
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Statutory Documents - IMO Publications and Documents - International Codes - DSC Code - Code of Safety for Dynamically Supported Craft – Resolution A.373(X) - Annex II - Use of Probability Concept - 2. Terms Associated with Probabilities - 2.1 Occurrences

2.1 Occurrences

 An occurrence is a condition involving a potential lowering of the level of safety.

  2.1.1 Failure An occurrence in which a part, or parts, of the craft fail or malfunction, e.g. runaway. A failure includes:

  • (a) a single failure;

  • (b) independent failures in combination within a system; and

  • (c) independent failures in combinations involving more than one system, taking into account:

    • (i) any undetected failure that is already present;

    • (ii) such further failuresfootnote as would be reasonably expected to follow the failure under consideration.

  2.1.2 Event An occurrence which has its origin outside the craft (e.g. waves).

  2.1.3 Error An occurrence arising as a result of incorrect action by the operating crew or maintenance personnel.

Parent topic: 2. Terms Associated with Probabilities
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