Safety Risk Management Example
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Transcript of Safety Risk Management Example
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Presented to:
Presented by: Don Arendt, Ph.D. FAA Flight Standards Service
Date: Oct 6, 2009
Federal AviationAdministrationSafety Risk
Management (SRM) Example
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Federal AviationAdministration 2Safety Risk Management Example
SRM: A Practical Example
Adapted from a presentation delivered by Capt. Robert Sumwalt, U.S. Airways, Retired, Member, NTSB to whom we
extend our thanks.
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Federal AviationAdministration 3Safety Risk Management Example
Risk Management “We manage risk whenever we modify the way we
do something to make our chances of success as great as possible, while making our chances of failure, injury or loss as small as possible.”
– FAA System Safety Handbook
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Federal AviationAdministration 4Safety Risk Management Example
SMS Concepts: Risk Management
• Understanding the system and environment
• Identifying hazardous conditions
• Assessing risk
• Applying risk controls
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Federal AviationAdministration 5Safety Risk Management Example
SystemAnalysis(Design)
HazardIdent
RiskControl
RiskAssmt
RiskAnalysis
Start
Outputs: To Safety Assurance
Design and Context
Specific Information: Gather Facts
Assessment: Decision making
Action Problem Resolution
Analysis: Making sense of the data
2.1 Hazard Identification
& Analysis
2.2 Risk Assessment
& Control
SRM
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Federal AviationAdministration 6Safety Risk Management Example
System Analysis: Operational Process
Operations To: Hilton Head, SC (HXD)
• 14 CFR Part 91 Business/Executive Transport
• Medium Turbine A/C
• Professional Crews
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Federal AviationAdministration 7Safety Risk Management Example
Facilities
Tower Open: 7:00 AM – 9:00 PM Local Runway 3/21: 4300’ - PCL
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Federal AviationAdministration 8Safety Risk Management Example
Physical EnvironmentHILTON HEAD ISLAND, SCHILTON HEAD• NOTE: Rwy 3, numerous trees 328' from departure end of• runway, 428' left of departure end of runway, 86' AGL/• 106' MSL. Numerous trees 319' from departure end of• runway, 390' right of departure end of runway, 83' AGL/• 97' MSL. Rwy 21, numerous trees 39' from departure• end of runway, 357' right of departure end of runway, 94'• AGL/111' MSL. Numerous trees 368' from departure• end of runway, 332' left of departure end of runway, 73'• AGL/87' MSL. Numerous trees 1421' from departure• end of runway, 221' right of departure end of runway, 74'• AGL/91' MSL. Numerous trees 1207' from departure• end of runway, 329' left of departure end of runway, 85‘/99’ MSL
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Federal AviationAdministration 9Safety Risk Management Example
Approaches Available
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Federal AviationAdministration 10Safety Risk Management Example
Hazard Identification
HAZARDS
- No precision approach
- No operational tower at night
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Federal AviationAdministration 11Safety Risk Management Example
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Federal AviationAdministration 12Safety Risk Management Example
Assess Risk
Hazard Risk Assessment Code No precision approach 3 (Seldom, Catastrophic)
No operational tower 3 (Seldom, Catastrophic)
Unlikely Seldom Occasional Likely
Catastrophic 2 3 4 4
Critical 1 2 3 4
Marginal 1 1 2 3
Negligible 1 1 2 2
PROBABILITY
SEVERITY
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Federal AviationAdministration 13Safety Risk Management Example
Risk Assessment: Conclusion
High, unacceptable risk of approach/landing accidents at night or in low IMC conditions
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Federal AviationAdministration 14Safety Risk Management Example
• Develop risk control options, then decide if benefits outweigh risk.
Make Risk Decisions & Develop Controls
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Federal AviationAdministration 15Safety Risk Management Example
Alternatives
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Federal AviationAdministration 16Safety Risk Management Example
CONTROLS
We will not use this airport:
between sunset and sunrise when control tower is closed, and
when the weather is forecast below 800/2.
HAZARDS - No precision approach
- No operational tower
Make Risk Decisions & Develop Controls
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Federal AviationAdministration 17Safety Risk Management Example
Determining Residual Risk
Hazard Risk Assessment Code No precision approach 1 (Unlikely, Negligible) No operational tower 1 (Unlikely, Negligible)
Unlikely Seldom Occasional Likely
Catastrophic 2 3 4 4
Critical 1 2 3 4
Marginal 1 1 2 3
Negligible 1 1 2 2
PROBABILITY
SEVERITY
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Federal AviationAdministration 18Safety Risk Management Example
““Carelessness and overconfidence are more Carelessness and overconfidence are more dangerous than deliberately accepted risk”dangerous than deliberately accepted risk”Wilbur Wright, 1901Wilbur Wright, 1901
Contact:Contact:Don Arendt, Ph.D.Don Arendt, Ph.D.
(703) 661-0516 (LL)(703) 661-0516 (LL)(703) 338-7746 (Cell)(703) 338-7746 (Cell)[email protected]@faa.gov
Wilbur Wright gliding, 1901Photographs: Library of Congress