chapter 6!!! need help, thank you!

4. Explain the role of the NTSB investigator-in-charge (IIC) and the NTSB go-team. What is the so-called party system that enables the NTSB to leverage its limited resources? Identify the steps taken in a major accident investigation. What types of activities are performed at the NIB's laboratory in Washington, D.C.? When are safety recommendations made? 5. Describe the responsibilities of the FAA during a major accident investigation, 6. Which item from the NTSB Most Wanted List do you think poses the biggest threat to aviation safety and why