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desired;
equivalent 10 yrs
experience
High Critical BS in Engineering or
applicable other
Six years in system
safety or related
discipline
CSP or PE
desired;
equivalent 10 yrs
experience
High Marginal BS in Engineering or
applicable other
Two years in system
safety or related
discipline
CSP or PE
desired;
equivalent 10 yrs
experience
Moderate Catastrophic BS in Engineering or
applicable other
Four years in system
safety
CSP or PE
desired; equiv. 10
yrs experience
Moderate Critical BS in Engineering or
applicable other
Four years in system
safety or related
discipline
None
Moderate Marginal BS plus training in
system safety
Two years in system
safety or related
discipline
None
Low Catastrophic BS plus training in
system safety
Four years in system
safety or related
discipline
None
Low Critical BS plus training in
system safety
Two years in system
safety or related
discipline
None
Low Marginal High School Diploma
plus training in
system safety
Two years in system
safety or related
discipline
None
FAA System Safety Handbook, Chapter 5: Post-Investment Decision Safety Activities
December 30, 2000
5 - 13
A SSPP prepared in accordance with MIL-STD-882 provides the FAA with an opportunity to review the
contractor's scheduling of safety tasks in a timely fashion, permitting corrective action when applicable.
MIL-STD-882 guides the contractor to plan and organize the system safety effort and provides the MA
with necessary information for FAA support planning by requiring the elements listed below.
Requirements to be adjusted for program, as necessary.
SSP milestones
Program schedule of safety tasks including start and completion dates, reports, reviews, and estimated
staff loading
Identification of integrated system safety activities (e.g., design analysis, tests, and demonstration)
applicable to the SSP but specified in other engineering studies to preclude duplication. (See Chapter 6,
System Safety Integration and Risk Assessment)
The SSPP must provide the timing and interrelationships of system safety tasks relative to other program
tasks. A suitable program milestone section of an SSPP will include a Gantt chart showing each
significant SSP task, the period of performance for each, and related overall program milestones. For
example, one expects the establishment of design criteria and the generation of the SSPP to begin almost
immediately during any design phase; analyses to run concurrent to design activities and have at least
interim completions prior to major design reviews; and the establishment of hazard tracking systems prior
to a significant testing. Figure 5-3 shows an example of a Gantt chart.
Figure 5-3: Sample SSPP Gantt Chart
The schedule for each SSP task in the SSPP should be tied to a major milestone (e.g., start 30 days after
or before the preliminary design review [PDR]) rather than a specific date, as MIL-STD-882 requires. In
this manner, the SSPP does not need revision whenever the master program schedule shifts. The same
MA control is maintained through the program master schedule but without the associated cost of
documented revision or schedule date waiver.
FAA System Safety Handbook, Chapter 5: Post-Investment Decision Safety Activities
December 30, 2000
5 - 14
5.3.4 Requirements and Criteria
A formally submitted SSPP provides the opportunity for the MA and the contractor to clearly reach the
same understanding of technical and procedural requirements and plans before precious assets are
expended. MIL-STD-882D Appendix A, provides guidance on the type of information be included in the
SSPP. The inclusion of this information expedites reaching a common understanding between the MA
and the contractor. This information includes the following.
Safety Performance Requirements
These are the general safety requirements needed to meet the core program objectives. The more closely;
these requirements relate to a given program, the more easily the designers can incorporate them into the
system. In the appropriate system specifications, incorporate the safety performance requirements that
are applicable, and the specific risk levels considered acceptable for the system. Acceptable risk levels
can be defined in terms of: a hazard category developed through a accident risk assessment matrix, an
overall system accident rate, demonstration of controls required to preclude unacceptable conditions;
satisfaction of specified standards and regulatory requirements; or other suitable accident risk assessment
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System Safety Handbook系统安全手册上(102)
