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development, production, test, transportation, handling, operation, and maintenance).
· Integrate safety activities into all systems engineering and National Airspace Integrated
Logistics Support (NAILS) activities. This integration requires the entire design,
manufacturing, test and logistics support teams to identify hazards and implement controls.
· Perform safety analysis in a timely manner.
· Communicate safety requirements and analyses to all subcontractors of safety significant
equipment.
· Ensure that safety analysis results are discussed in design and document reviews.
· Execute closed loop procedures to ensure that required safety controls are actually
implemented (e.g., warnings in technical manuals and training programs).
· Review historical data for similar applications.
· Demonstrate corrective actions for identified risks.
5.2 Preparing a System Safety Program Plan
An approved System Safety Program Plan (SSPP) is a contractually binding understanding between the
FAA and a contractor on how the contractor intends to meet the specified system safety requirements.
When there are projects or systems that have multiple subcontractors, an Integrated System Safety
Program plan (ISSSPP) should be developed . These plans should describe in detail the contractor's safety
organization, schedule, procedures, and plans for fulfilling the contractual system safety obligations. The
SSPP is a management vehicle for both the FAA and the contractor. The FAA uses the SSPP approval
cycle to ensure that proper management attention, sufficient technical assets, correct analysis and hazard
control methodology, and tasks are planned in a correct and timely manner. Once approved, the FAA
uses the SSPP to track contractor System Safety Program (SSP) progress. The SSPP is of value to the
contractor as a planning and management tool that establishes "before the fact" an agreement with the
FAA on how the SSP will be executed and in what depth. In summary, the approved SSPP is an SSP
baseline document that minimizes the potential for downstream disagreement of SSP methodology.
Figure 5-1 shows the position of the SSPP relative to other parts of the SSP. MIL-STD-882 and the
SSMP provide guidance on establishing an SSPP. These documents describe in detail the tasks and
activities of system safety management and system safety engineering that are required to identify,
evaluate, and eliminate hazards, or reduce the associated risk to a level acceptable to the FAA throughout
the system's life cycle.
FAA System Safety Handbook, Chapter 5: Post-Investment Decision Safety Activities
December 30, 2000
5 - 6
SSPP
SCOPE
ORGANIZATION
MILESTONES
REQUIREMENTS
SAFETY DATA
SAFETY VERIF.
MISHAP REPORT
INTERFACES
REQMTS
PHL
CONTRACTUAL
REQUIREMENTS
SYSTEM
SAFETY
PROGRAM
PLAN
ANALYSES
FAULT TREE
PHA
SSHA
O&SHA
TEST
&
EVALUATION
Pre-Contract Contract
SSA REPORT
Figure 5-1: System Safety Program Plan
The FAA establishes the contractual requirements for a SSPP in the Statement of Work (SOW). The
FAA requires the contractor to establish and maintain an effective and efficient SSP. This is usually the
first safety requirement stated in the SOW. SSP requirements are defined by MIL-STD-882, Section 4.
They are the only mandatory requirements and cannot be tailored. The System Safety Program Plan
purpose is to plan and document the system safety engineering effort necessary to ensure a safe system.
The SSPP will:
· Describe the program’s implementation of the requirements of MIL-STD-882D, including
identification of the hazard analysis and accident risk assessment processes to be used.
FAA System Safety Handbook, Chapter 5: Post-Investment Decision Safety Activities
December 30, 2000
5 - 7
· Include information on how system safety will be integrated into the overall system
Integrated Product Development System and Integrated Product Team structure in the FAA.
· Define how hazards and residual risk are communicated to the program manager, and how
the program manager will formally accept and track the hazards and residual risk.
The SSPP contains the scope, organization, milestones, requirements, safety data, safety verification,
accident reporting, and safety program interfaces.
The Statement of Work will normally include the following elements:
· Acceptable level of risk with reporting thresholds*
· Minimum hazard probability and severity reporting thresholds*
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System Safety Handbook系统安全手册上(98)
