Technically, NTSB investigations are never ______.

Technically, NTSB investigations are never ______.

• A. Open
• B. Inconclusive
• C. Classified
• D. Closed

Answer: (D)

In NTSB investigations, the case file stays a living record. The Board keeps the investigative docket open so new information, evidence, or safety concerns can trigger updates or even a reopening if needed. Safety recommendations generated during an investigation are tracked and followed up long after any initial findings, reinforcing that the process isn’t treated as a permanently finished story. Because of this ongoing, reopenable nature, the best way to complete the sentence is that investigations are never truly closed. The final idea is that the record remains active to support continuous safety improvements.

In NTSB investigations, the case file stays a living record. The Board keeps the investigative docket open so new information, evidence, or safety concerns can trigger updates or even a reopening if needed. Safety recommendations generated during an investigation are tracked and followed up long after any initial findings, reinforcing that the process isn’t treated as a permanently finished story. Because of this ongoing, reopenable nature, the best way to complete the sentence is that investigations are never truly closed. The final idea is that the record remains active to support continuous safety improvements.