3. The Safety Analysis and Risk Mitigation Process 

3.1 Overview 

3.2 Scope of the SRM Process 

3.3 DIAAT Phase 1: Describe System 

3.4 DIAAT Phase 2: Identify Hazards 

3.5 DIAAT Phase 3: Analyze Risk 

3.1.1 Overview of the SRM Process 

3.1.2 SRM Safety Analysis Phases 

3.2.1 When to Perform a Safety Analysis 

3.2.2 When a Safety Analysis May Not Be Required 

3.3.1 Overview 

3.3.2 Bounding and Scoping Safety Analyses 

3.3.3 Defining the System / NAS Change 

3.4.1 Overview 

3.4.2 Potential Sources of Hazards 

3.4.3 Elements of Hazard Identification 

3.4.4 Causes and System State Defined 

3.4.5 Addressing Hazards that Cross FAA Lines of Business 

3.5.1 Overview 

3.2.2.1 Overview 

3.2.2.2 NAS Change Proposal 

3.2.2.3 Examples of NAS Changes Unlikely to Require a Safety Analysis 

3.3.2.1 Bounding Safety Analyses in an Integrated NAS 

3.3.2.2 Required Depth and Breadth of the Analysis 

3.3.2.3 Involving Other FAA LOBs 

3.3.2.4 Setting the Scope of the Analysis 

3.3.3.1 Describe the System and the NAS Change 

3.3.3.2 5M Model Method 

3.4.2.1 Existing Hazards 

3.4.3.1 Techniques for Hazard Identification and Analysis 

3.4.5.1 Hazard Escalation and Reporting 

3.3.3.1.1 Overview 

3.3.3.1.2 Considerations when Defining the System 

3.4.2.1.1 Identified but Not in the Scope of an Ongoing NAS Change 

3.4.2.1.2 Hazards Identified by Audits 

3.4.2.1.3 Hazards Identified by Top 5 

3.4.2.1.4 Emergency Modifications 

3.4.2.1.5 Existing High-Risk Hazards 

3.4.3.1.1 Developing a PHL 

3.4.3.1.2 Developing a HAW 

3.4.3.1.3 Other Accepted Tools and Techniques 

