Certified Flight Instructor - Flight Instructor Airplane Practice Exam

What incident with a turbine aircraft requires immediate NTSB notification?

1. An engine fire that occurs on the ground

2. Sustained loss of thrust in one engine of a large multiengine aircraft

3. Compressor blade failure that penetrates the cowling

4. Loss of power in a single-engine airplane

The correct answer is: Compressor blade failure that penetrates the cowling

The requirement for immediate notification to the National Transportation Safety Board (NTSB) in the event of compressor blade failure that penetrates the cowling stems from the potential severity of such an incident. When a compressor blade fails and exits the engine compartment, it creates a significant risk not only to the aircraft and its occupants but also to people and property on the ground. This kind of failure could lead to catastrophic outcomes, including engine failure, loss of control, or secondary damage to nearby structures or other aircraft. Notably, compressor blade failures are considered serious incidents that may highlight underlying mechanical issues or flaws in maintenance practices, making timely reporting essential for investigative and safety improvement purposes. The NTSB utilizes this information to analyze incident patterns, determine safety deficiencies, and help prevent similar occurrences in the future. Other incidents listed may still require reporting but do not necessarily warrant the same immediate urgency or level of concern. An engine fire occurring on the ground does require notification but may not indicate immediate danger to the flying public. A sustained loss of thrust in one engine of a large multiengine aircraft, although critical, typically allows for operational responses to maintain control of the airplane. Loss of power in a single-engine airplane is serious as well, but it is generally