PURPOSE
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The purpose of Task 206 is to perform and document an Operating and Support Hazard Analysis (O&SHA), to evaluate activities for hazards or risks introduced into the system by operational and support procedures and to evaluate adequacy of operational and support procedures used to eliminate, control, or abate identified hazards or risks.
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TASK DESCRIPTION
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The contractor shall perform and document an O&SHA to examine procedurally controlled activities. The O&SHA identifies and evaluates hazards resulting from the implementation of operations or tasks performed by persons, considering: the planned system configuration/state at each phase of activity; the facility interfaces; the planned environments (or ranges thereof); the supporting tools or other equipment, including software controlled automatic test equipment, specified for use; operational/task sequence, concurrent task effects and limitations; biotechnological factors, regulatory or contractually specified personnel safety and health requirements; and the potential for unplanned events including hazards introduced by human errors. The human shall be considered an element of the total system, receiving both inputs and initiating outputs during the conduct of this analysis. The O&SHA must identify the safety requirements (or alternatives) needed to eliminate or control identified hazards, or to reduce the associated risk to a level which is acceptable under either regulatory or contractually specified criteria.
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The analysis shall identify:
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Activities which occur under hazardous conditions, their time periods, and the actions required to minimize risk during these activities/time periods.
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Changes needed in functional or design requirements for system hardware/software, facilities, tooling, or support/test equipment to eliminate or control hazards or reduce associated risks.
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Requirements for safety devices and equipment, including personnel safety and life support equipment.
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Warnings, cautions, and special emergency procedures (e.g., egress, rescue, escape, render safe, explosive ordnance disposal, back-out, etc.), including those necessitated by failure of a computer software-controlled operation to produce the expected and required safe result or indication.
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Requirements for packaging, handling, storage, transportation, maintenance, and disposal of hazardous materials.
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Requirements for safety training and personnel certification.
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Effects of nondevelopmental hardware and software across the interface with other system components or subsystems.
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Potentially hazardous system states under operator control.
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The O&SHA shall document system safety assessment of procedures involved in: system production, deployment, installation, assembly, test, operation, maintenance, servicing, transportation, storage, modification, demilitarization, and disposal.
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If no specific analysis techniques are directed or if the contractor recommends that a different technique than specified by the MA should be used, the contractor shall obtain MA approval of technique(s) to be used prior to performing the analysis.
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The contractor shall update the O&SHA as a result of any system design or operational changes.
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REPORT REQUIREMENTS
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The contractor shall prepare a report that contains the results from the work task described by paragraph "TASK DESCRIPTION" above to include the following information:
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System Description
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This will consist of summary descriptions of the physical and functional characteristics of the system and its components. Reference to more detailed system and component descriptions, including specifications and detailed review documentation shall be supplied when such documentation is available. The capabilities, limitations and interdependence of these components shall be expressed in terms relevant to safety. The system and components shall be addressed in relation to its mission and its operational environment. System block diagrams or functional flow diagrams may be used to clarify system descriptions. Software and its role(s) shall be included in this description.
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Data
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This will consist of summaries of data used to determine the safety aspects of design features
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Hazard Analysis Results
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This will consist of a summary or a total listing of the results of hazard analysis. Contents and formats may vary according to the individual requirements of the program. The following are the content and format requirements for Hazard Analysis Results:
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A summary of the results.
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A listing of identified hazards, in narrative or matrix (sometimes called columnar or tabular) format, to include the following information:
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System Component/Phase
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The particular phase/component that the analysis is concerned with. This could be a system, subsystem, component, software, operating/maintenance procedure or environmental condition.
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System Operation Description
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A description of what is normally expected to occur as the result of operating the component/subsystem or performing the operating/maintenance action.
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Description
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A complete description of the potential/actual hazards inherent in the item being analyzed, or resulting from normal actions or equipment failure, or handling of hazardous materials.
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Hazard Identification/Indication
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A description of operator/crew indications which include all means of identifying the hazard to operational/maintenance personnel.
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Effect of Hazard
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The detrimental effects which could be inflicted on the subsystem, system, other equipment, facilities or personnel, resulting from this hazard. Possible upstream and downstream effects shall also be described.
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Risk Assessment
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A risk assessment for each hazard (classification of severity and probability of occurrence). This is the assessment of the risk prior to taking any action to eliminate or control the hazard.
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Recommended Action
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The recommended action required to eliminate or control the hazard. Sufficient technical detail is required in order to permit the design engineers and the customer to adequately develop and assess design criteria resulting from the analysis. Include alternative designs and life cycle cost impact where appropriate.
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Effect of Recommended Action
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The effect of the recommended action on the assigned risk assessment. This is the risk assessment after taking action to eliminate or control each hazard. If the recommended action will result in cost/schedule/performance penalties to the extent that the contractor requires government approval prior to incorporation, then these considerations shall be addressed.
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Remarks
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Any information relating to the hazard not covered in other blocks; for example, applicable documents, previous failure data on similar systems, or administrative directions.
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Status
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The status of actions to implement the recommended, or other, hazard controls. The status shall include not only an indication of "open" or "closed," but also reference to the drawing(s), specification(s), procedure(s), etc., that support closure of the particular hazard.
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Caution and Warning Notes
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A complete list of warnings, cautions, and procedures required in operating and maintenance manuals and for training courses.
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DETAILS TO BE SPECIFIED IN THE SOW
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Imposition of Tasks 101 and 206.
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Minimum hazard probability and severity reporting thresholds.
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Specification of desired analysis technique(s) and/or format.
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The specific procedures to be evaluated (Reference 206.2.2).
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