During which investigation can the NTSB participate?

The National Transportation Safety Board (NTSB) plays a crucial role in conducting investigations into transportation-related accidents, including aviation. The NTSB is involved in interagency investigations because these investigations often require collaboration between different governmental and agency entities, along with various organizations. The NTSB has the authority to lead these investigations and bring in expertise from multiple fields when a transportation accident occurs.

In an interagency investigation, the NTSB can work alongside other federal, state, and local agencies, allowing for a comprehensive analysis of the incident. Their participation ensures that all relevant aspects of the investigation are covered, which contributes to understanding the causes and preventing future occurrences.

On the other hand, a Class A Mishap Investigation is typically conducted by military branches and doesn't involve NTSB authority. Ground Mishap Safety Reviews are often internal assessments aimed at improving safety protocols rather than formal investigations, and the Field Naval Aviator Evaluation is more focused on personnel assessment than investigative procedures. Therefore, these options do not reflect situations where the NTSB would be directly involved.