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Showing posts from January, 2013

Construction Phase

                 During the construction phase, two safety related activities take place. Change orders are reviewed to ensure changes do not degrade safety features already incorporated in the design. Successful execution is dependent on disciplined configuration control.                  The final step before the user takes control of the facility is the occupancy inspection. This inspection verifies the presence of critical safety features incorporated into the design. The use of a hazard tracking system can facilitate the final safety assessment.              This review may identify safety features that might otherwise be overlooked during the inspection. A Hazard Tracking Log can generate a checklist for safety items that should be part of this inspection.              The results of the occupancy inspection can serve as a measure of the effectiveness of the SSPP. Any hazards discovered during the inspection will fall into one of two categories. A hazard that was previously

Risk Analysis Methodology

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          After applying the various analysis techniques to identify risks, there are additional tasks involving: Risk  assessment, hazard control analysis, requirements cross-check analysis, and hazard tracking and risk  resolution.                  Risk Assessment  Risk assessment is the classification of relative risk associated with identified hazards. Risk has two  elements, which are severity and likelihood. Severity is the degree of harm that would occur if an accident  happens. Likelihood is a qualitative expression of the probability that the specific accident will occur.               Criteria for severity and likelihood should be defined. When risk assessment is to be conducted, the risks  should be prioritized to enable resources to be allocated consistently to the highest risks.                 Matrix indicates the related hazard  code, hazard or scenario description, and scenario code. Both initial risk and final risk associated with the  specific scenario is als

Aviation Risk Analysis

                  The objective of SMS is to provide information on how to identify,  eliminate and control aviation-related risks. There are unique hazards and risks associated with  commercial aviation, as well as general aviation activities. Generally, a number of hazards and risks are  listed for consideration. During hazard analysis activities, the analyst should consider these appropriate  examples: • Aviation fuel storage and handling. • Airport ground handling equipment, its use, movement, and maintenance. • Surface movement at airports • Traffic management at airports. • Life safety involving the general public at places of assembly in airports. • Preventative maintenance and inspection of aircraft. • The conduct of maintenance operations such as: use of flammables, solvents, parts cleaning, equipment accessibility, flammable materials, hangar fire protection equipment. • Aircraft movement in and around hangars, aprons, taxiways. • Operations during inclement we

Hazard Identification Facility

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                      A generic list of anticipated hazards should be developed after the ORMG has become familiar with the  system. The hazard list should also denote controls that could be implemented to manage the risks  associated with the identified risks as well as relevant requirements from regulatory, consensus standards .           This information, should be presented as a tabular format which, includes a  Requirements Cross-check Analysis. The generic hazards and controls should be developed from program  documentation. It is anticipated that this list will lengthen as the O&SHA progresses. This list will also  serve as a basis for other future analyses.             The basis of the analysis relates to generic hazards and controls to specific maintenance steps required for  maintaining and repairing the system. The maintenance steps identified during the review should be  integrated into a matrix. In evaluating hazards associated with the maintenance procedures, t

Occupational Risk Management

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          The first step of the analysis should be to form the Occupational Risk Management Group (ORMG) that would conduct the effort.                                                                                      This group  should consist of appropriate representatives from various disciplines including support contractors. For  example, group members should be experienced safety professionals who are recognized as experts in fire  protection, system safety, environmental and industrial engineering as well as industrial hygiene and  hazardous materials management. SSWG and ORMG will share data from the working group efforts.  ORMG Process  The ORMG process consists of nine major elements,  Develop System  Knowledge  Hazard  Identification  (Master Matrix)  Hazard Control  & Analysis  Requirements  Cross-Check  Hazard Tracking  &  Risk Resolution  Document in  Initial  SER (iterative)  System Safety  Monitoring  Update  SER  Progress to  Next system 

Risk Categorization

  Risk Categorization -     The completion of the initial Preliminary Hazard List (PHL) permits categorization of the planned facility  into risk categories. Categorizing is based on several factors, such as number of people exposed, type and  degree of inherent hazard of operation,  vulnerability, and cost. Inputs include whether or not the facility is “one of a kind” or a standard design  and how it impacts the rest of the installation. For example, the failure or destruction of a facility used to  house emergency power or one through which communication lines run may shut down an entire airport or  region. The designation should reflect the local concern for operational safety and health risks presented by  the facility and its mission. It is critical that the appropriate risk categorization be applied in each instance.  Initial Risk  Categorization  Facility’s Mission  Energy Sources  ! Type  ! Magnitude  Occupancy  Lessons Learned  Low  Medium  High Low-risk facilitie