WITSML - Operational Health, Safety and Environment Component Schema. the number of incidents of accidents and injuries that were reported. The amount of time since the most recent Lost Time Accident. The amount of time since the most recent accident prevention exercise. The amount of time since the most recent defined hazard and accident situation (Norwegian DFU). The number of system alarms that have occurred. The number of personnel safety introductions that have occurred. A textual description of safety considerations. Safety information at a specific installatino. Information about the weather at a point in time. The unique identifier of the recurring element.