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Fundamentals of safety for civil aircraft, systems, and equipment

Basics of Reliability Theory

Functional Hazard Assessment

Preliminary System Safety Assessment

System Safety Assessment

Fault Tree Analysis

Markov Analysis

Failure Mode and Effects Analysis

Common Cause Analysis

ARP-4761 provides both newcomers and experienced safety engineers an insight into the key objectives of the Aerospace Recommended Practice (ARP) for the framework and techniques applicable to civil aircraft and systems, recommended by the Aerospace Practice 4761.

This course introduces you to the Safety Assessment Process on aircraft systems, as well as how it integrates with other implementation processes. The fundamentals of the Reliability Theory are described and discussed in relation to airborne systems, equipment requirements and how they are used during both the preliminary and final system safety assessment process.

The course also looks at each of the methods for conducting the Safety Assessment Process, including worked examples for each of the core techniques. We discuss the regulatory framework in which ARP-4761 fits, and describe how it relates to other guidance for civil airborne systems and equipment, especially the relationship with the recently updated ARP-4754A.

A large proportion of the course is spent describing and working through each of the core techniques of Functional Hazard Assessment (FHA), Fault Tree Analysis (FTA), and Common Cause Analysis (CCA), including each of the sub-analyses of Zonal Safety Analysis, Common Mode Analysis and Particular Risk Analysis.

Real life examples are used extensively during the course providing an invaluable training and learning aid. In addition to the core techniques the training provides introductions to dependency diagrams and Markov analysis.

Introduction to ARP-4761

ARP61-101

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Course Outline

Day 1

How we design for safety

Reliability Theory

Functional Hazard Assessment

Preliminary System Safety Assessment and the System Safety Assessment

System safety analysis tools and techniques

Fault Tree Analysis, dependency diagrams and Markov analysis

Failure modes and effects analysis

Common Cause Analysis

Examples - putting it all together

Course Objectives ▪ To describe the true foundation and rationale for safety assessment

for civil airborne systems and equipment ▪ To provide an understanding of the systems safety assessment in

relation to the overall aircraft or system development processes ▪ To enable you to apply each of the safety assessment techniques to

support aircraft or system safety assessment ▪ To describe the Reliability Theory, and its relation to system safety

Attendees will learn ▪ The safety assessment process for civil airborne systems and

equipment ▪ The basics of reliability theory, and its relation to system safety ▪ Each of the techniques used as part of the aircraft or systems safety

assessment process: ▫ FHA ▫ FTA ▫ Dependency diagrams ▫ Markov analysis ▫ Failure modes and effects analysis ▫ CCA

Attendees Receive ▪ A bound copy of all course slides

Pre-requisites ▪ Basic understanding of systems, hardware, or software development ▪ Knowledge of DO-178 and/or DO-254 processes ▪ Awareness of the importance of ARP-4754A as an input to both

systems and design assurance determination

Who Should Attend ▪ Safety engineers new to avionics systems ▪ Systems/hardware engineers ▪ Managers and quality assurance

Related Courses ▪ ARP54-101: Introduction to ARP-4754A (1 day)