Which of the following is a reportable incident according to NTSB guidelines?

Under NTSB guidelines, reportable incidents typically involve situations that significantly affect the safety of flight operations. In this case, more than a 50% loss of an electronic display is critical because it can directly impact the pilot’s ability to monitor essential flight information, thereby compromising flight safety. The loss of vital instruments can lead to a loss of situational awareness, which is paramount in aviation.

While minor damage to an aircraft, minor injuries to passengers, and routine safety inspections might occur without necessarily endangering flight safety, they do not rise to the level of reportable incidents per NTSB criteria. Minor damage might not affect the airworthiness of an aircraft, minor injuries may not require reporting unless they escalate, and safety inspections are standard procedural measures taken to ensure aircraft reliability without any immediate incident implications.