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NPR 8621.1D
Effective Date: July 06, 2020
Expiration Date: July 06, 2025

Subject: NASA Procedural Requirements for Mishap and Close Call Reporting, Investigating, and Recordkeeping (updated w/Change 4)

Responsible Office: Office of Safety and Mission Assurance

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Table of Contents


Change History

P.1 Purpose
P.2 Applicability
P.3 Authority
P.4 Applicable Documents and Forms
P.5 Measurement/Verification
P.6 Cancellation

Chapter 1. Readiness to Conduct Investigations

1.1 NASA Mishap and Close Call Descriptions
1.2 Mishap or Close Call Classification
1.3 Mishap Preparedness and Contingency Plans
1.4 Roles and Responsibilities
1.5 Training

Chapter 2. Mishap Response, Notification, and Classification

2.1 Initial Mishap Response
2.2 Initial Mishap Notifications
2.3 Post-Mishap Notifications

Chapter 3. Investigating Authority and Investigation Support Selection

3.1 Appointing Official Determination
3.2 Investigating Authority Member Selection
3.3 Investigating Authority Advisor Selection
3.4 Investigating Authority Consultant Selection
3.5 Appointment Letter Content

Chapter 4. Mishap Investigation Process

4.1 Mishap Investigation Analysis
4.2 Site Safety and Evidence Preservation and Impoundment
4.3 Evidence and Fact Gathering
4.4 Findings Determination
4.5 Recommendations Generation.
4.6 Status Reports
4.7 Other Investigation Types
4.8 Mishap Site Release

Chapter 5. Mishap Investigation Report

5.1 Mishap Investigation Report Development
5.2 Investigating Authority Release
5.3 Mishap Investigation Report Review, Endorsement, and Approval
5.4 Mishap Investigation Report Distribution

Chapter 6. Post-Investigation Activities

6.1 Corrective Action Plan Development
6.2 Corrective Action Plan Contents
6.3 Corrective Action Plan Review and Approval
6.4 Corrective Action Plan Implementation
6.5 Corrective Action Plan Monitoring and Close Out
6.6 Lessons Learned Development, Disposition, Submittal, and Approval
6.7 Investigation Activities Conclusion
6.8 Evidence Recording and Retention

Chapter 7. Requirements for Commercial Launch Mishap and Close Call Investigations

7.1 Introduction
7.2 Applicable NASA Policy Directives (NPDs) and NASA Advisory Implementing Instructions (NAIIs) That Address Commercial Launch
7.3 What to Expect When Supporting a Commercial Program/Project Mishap or Close Call
7.4 MPCP Guidance
7.5 Background and Purpose
7.6 Investigations
7.7 Confidential Nature of NTSB Accident Investigations
7.8 Confidential Nature of USAF Safety Investigations
7.9 Confidential Nature of NASA Safety Investigations

Chapter 8. NASA Aircraft Mishap and Close Call Investigations

8.1 Readiness to Conduct Investigations
8.2 Mishap Response, Notification, and Classification
8.3 Investigating Authority and Investigation Support Selection
8.4 Mishap Investigation Process
8.5 Mishap Investigation Report
8.6 Post-Investigation Activities

Chapter 9. Guidance for NASA Spacecraft Mishap and Close Call Investigations (Reserved)

Appendix A. Terms and Definitions
Appendix B. Acronyms
Appendix C. Test-Induced Damages
Appendix D. Mishap Required Training (Available Through SATERN)
Appendix E. Procedural Sequence for Mishap Notification and Investigation
Appendix F. Positional Sequence for Mishap Notification and Investigation
Appendix G. NASA Mishap Investigation Interface With External Mishap Investigation
Appendix H. Data Entry Elements and Recording Requirements
Appendix I. Endorsement Review Process Flow
Appendix J. References


This document does not bind the public, except as authorized by law or as incorporated into a contract. This document is uncontrolled when printed. Check the NASA Online Directives Information System (NODIS) Library to verify that this is the correct version before use: https://nodis3.gsfc.nasa.gov.