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Analysis is to rank each failure mode
identified in a Failure Modes and
Effect Analysis.
The technique is applicable to all
systems, processes, procedures, and
their elements.
Once critical failures are identified
they can be equated to hazards and
risks. Designs can then be applied to
eliminate the critical failure thereby,
eliminating the hazard and
associated accident risk.
2 Tarrents, William, E. The Measurement of Safety Performance, Garland STPM Press, 1980.
FAA System Safety Handbook, Chapter 9: Analysis Techniques
December 30, 2000
9 - 19
No. Methods and/or
Techniques
Summary Applicability and Use
16 Critical Path
Analysis
Critical Path Analysis identifies
critical paths in a Program
Evaluation graphical network.
Simply it is a graph consisting of
symbology and nomenclature
defining tasks and activities. He
critical path in a network is the
longest time path between the
beginning and end events.
This technique is applied in support
of large system safety programs,
when extensive system safety –
related tasks are required.
17 Damage Modes
and Effects
Analysis
Damage Modes and Effects Analysis
evaluates the damage potential as a
result of an accident caused by
hazards and related failures.
Risks can be minimized and their
associated hazards eliminated by
evaluating damage progression and
severity.
18 Deactivation
Safety Analysis
This analysis identifies safety
concerns associated with facilities
that are decommissioned/closed.
The deactivation process involves
placing a facility into a safe mode
and stable condition that can be
monitored if needed.
Deactivation may include removal of
hazardous materials, chemical
contamination, spill cleanup.
19 Electromagnetic
Compatibility
Analysis
The analysis is conducted to
minimize/prevent accidental or
unauthorized operation of safetycritical
functions within a system.
Adverse electromagnetic
environmental effects can occur
when there is any electromagnetic
field.
Electrical disturbances may also be
generated within an electrical system
from transients accompanying the
sudden operations of solenoids,
switches, choppers, and other
electrical devices, Radar, Radio
Transmission, transformers.
20 Energy Analysis The energy analysis is a means of
conducting a system safety evaluation
of a system that looks at the
“energetics” of the system.
The technique can be applied to all
systems, which contain, make use
of, or which store energy in any
form or forms, (e.g. potential,
kinetic mechanical energy, electrical
energy, ionizing or non-ionizing
radiation, chemical, and thermal.)
This technique is usually conducted
FAA System Safety Handbook, Chapter 9: Analysis Techniques
December 30, 2000
9 - 20
No. Methods and/or
Techniques
Summary Applicability and Use
in conjunction with Barrier
Analysis.
21 Energy Trace and
Barrier Analysis
Energy Trace and Barrier Analysis is
similar to Energy Analysis and
Barrier Analysis.
The analysis can produce a
consistent, detailed understanding of
the sources and nature of energy
flows that can or did produce
accidental harm.
The technique can be applied to all
systems, which contain, make use
of, or which store energy in any
form or forms, (e.g. potential,
kinetic mechanical energy, electrical
energy, ionizing or non-ionizing
radiation, chemical, and thermal.)
22 Energy Trace
Checklist
Similar to Energy Trace and Barrier
Analysis, Energy Analysis and
Barrier Analysis.
The analysis aids in the identification
of hazards associated with energetics
within a system, by use of a
specifically designed checklist.
The analysis could be used when
conducting evaluation and surveys
for hazard identification associated
with all forms of energy.
The use of a checklist can provide a
systematic way of collecting
information on many similar
exposures.
23 Environmental
Risk Analysis
The analysis is conducted to assess
the risk of environmental
noncompliance that may result in
hazards and associated risks.
The analysis is conducted for any
system that uses or produces toxic
hazardous materials that could cause
harm to people and the environment.
24 Event and Casual
Factor Charting
Event and Casual Factor Charting
　
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