What is the primary function of the NTSB?

The primary function of the National Transportation Safety Board (NTSB) is to investigate aviation accidents and incidents. The NTSB plays a critical role in promoting aviation safety by determining the probable cause of accidents and incidents, analyzing data, and making recommendations aimed at preventing future occurrences. This investigative process is crucial for understanding underlying issues and deficiencies within the aviation system, whether they relate to human factors, mechanical failures, or regulatory compliance.

In fulfilling its role, the NTSB studies various aspects of aviation safety, including practices, technology, and operational procedures. Its findings can lead to significant safety improvements and changes in regulations, which benefit the aviation community as a whole.

The other choices, while related to aviation, do not accurately reflect the NTSB's main responsibilities. Issuing pilot licenses is managed by the Federal Aviation Administration (FAA), which oversees regulations concerning pilot certification. Enforcing aircraft manufacturing regulations is also primarily under the FAA's purview, which ensures that manufacturers comply with safety and production standards. Lastly, air traffic control services are managed by the FAA as well, focusing on the safe and efficient management of air traffic, rather than the investigative role that defines the NTSB's work.