Download - Safety Risk Management Example
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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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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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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SMS Concepts: Risk Management
• Understanding the system and environment
• Identifying hazardous conditions
• Assessing risk
• Applying risk controls
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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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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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Facilities
Tower Open: 7:00 AM – 9:00 PM Local Runway 3/21: 4300’ - PCL
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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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Approaches Available
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Hazard Identification
HAZARDS
- No precision approach
- No operational tower at night
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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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Risk Assessment: Conclusion
High, unacceptable risk of approach/landing accidents at night or in low IMC conditions
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• Develop risk control options, then decide if benefits outweigh risk.
Make Risk Decisions & Develop Controls
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Alternatives
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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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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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““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