system safety concepts n.
Skip this Video
Loading SlideShow in 5 Seconds..
System Safety Concepts PowerPoint Presentation
Download Presentation
System Safety Concepts

Loading in 2 Seconds...

play fullscreen
1 / 14

System Safety Concepts - PowerPoint PPT Presentation

  • Uploaded on

System Safety Concepts. Dave Balderston Office of System Safety March 26, 2003. Outline. Introduction References System Concepts Safety Risk Management Concepts Implementation Issues. References. FAA Order 8040.4, “Safety Risk Management”

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'System Safety Concepts' - becka

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
system safety concepts

System Safety Concepts

Dave Balderston

Office of System Safety

March 26, 2003

  • Introduction
  • References
  • System Concepts
  • Safety Risk Management Concepts
  • Implementation Issues
  • FAA Order 8040.4, “Safety Risk Management”
  • Draft System Safety Handbook especially Chapter 15, Operational Risk Management

located at (Safety Risk Management)

  • System safety approach provides a comprehensive and disciplined, but flexible methodology for identifying and addressing safety concerns
  • Use system perspective to understand complete situation
  • Address safety concerns using system concepts
  • Simple, common sense approach—do it all the time; a formalized approach can help do it better.
basic questions
Basic Questions
  • What is going on?
    • Design analysis or system monitoring
  • What should we worry about?
    • Hazard identification
  • How much should we worry?
    • Risk assessment
  • What should we do?
    • Risk management
definition of system
Definition of System
  • Composite of people, procedures, materials, tools, equipment, facilities, and software
  • Operating in a specific environment
  • To perform a specific task or achieve a specific purpose, support or mission requirement
    • Such as the provision of crash/fire rescue services
major components of system for landing aircraft
Major Components of Systemfor Landing Aircraft
  • Airport Infrastructure
  • Air Traffic Control Functions
  • Aircraft and Crew
  • Environmental Factors
  • How do these system components need to interact to assure that aircraft land safely?
safety management concepts
Safety Management Concepts
  • Safety Goal: Avoid safety losses (death or injury)
  • Strategy: Manage safety risk (likelihood and severity of potential losses)
  • Implementation: Identify and control hazards (conditions that lead to increased safety risk)
safety risk management strategy
Safety Risk Management Strategy
  • Design Analysis/System Monitoring
    • What is going on?
  • Hazard Identification
    • What should we worry about?
  • Risk Assessment
    • How much should we worry?
  • Risk Management
    • What should we do about it?
safety assurance steps
Safety Assurance Steps
  • Designing in safety assurance

(must be done in system development)

  • Maintaining and strengthening safety assurance

(Infrastructure support—procedures, training, maintenance, etc.)

  • “Real Time” safety assurance


safety order of precedence
Safety Order of Precedence
  • Reduce risk through design (strongest)
  • Incorporate safety devices
  • Provide warning devices
  • Develop procedures and training (weakest—the “human factors” issue)
implementation issues
Implementation Issues
  • Understand the problem in system terms
    • Appropriate definition of system
    • Effective system monitoring (inadequate system monitoring can be a hazard)
    • Involvement of all key stakeholders
  • Disciplined risk management process, even if expert judgment is the best available evidence
    • Hazard identification and prioritization
    • Risk assessment
    • Risk management
example land and hold short operations risk assessment
Example: Land and Hold Short Operations Risk Assessment
  • Joint FAA/Industry Team
  • Identified hazards, assessed risks
  • Used expert judgment
  • Report located at under Safety Risk Management heading
  • System Perspective
  • Safety Risk Management Process
  • Implementation Issues