Accident risk assessment, contractors

In addition to the hazardous conditions that develop during daily operations and are incorporated in the closed-loop hazard tracking system, the customer may require the contractor to perform a formal periodic risk assessment (usually annually, but it can be more frequent if the customer so desires or if operational activities dictate) of all facilities in which operations will occur. The risk assessment will also take into consideration the hazards associated with the permanent equipment and hardware assigned for use in the facility. The accident risk assessment then becomes a detailed safety analysis of a facility, including its systems and functions. 

A CSI is essentially the same as an SCI except that systems required to identify CSIs have additional statutory and regulatory requirements that the contractor must meet in supplying those CSIs to the government. For systems required to have a CSI list, HA and mishap risk assessment is used to develop that list. The determining factor in CSIs is the consequence of failure, not the probability that the failure or consequence would occur. CSIs include items determined to be life-limited, fracture critical, fatigue-sensitive, and so on. Unsafe conditions relate to hazard severity categories I and II of MIL-STD-882. A CSI is also identified as a part, subassembly, assembly, subsystem, installation equipment, or support equipment for a system that contains a characteristic, failure mode, malfunction, or absence of which could result in a Class A or Class B accident as defined by DoDINST 6055.7. 

---