August 30, 2023 - In Investigation Forms and checklists Training Needs Assesment Form NSIB.04.06 This is a Training Needs Assesment Form NSIB.04.06 by the Nigerian Safety Investigation Bureau.Download (PDF) Previous INVESTIGATION EVENT MANAGEMENT CHECKLIST – EVENT 45: NAVIGATION AIDS AND AIRPORT STATUS Next Investigation Event Management Checklist- Event 35 (Interviews (Meteorology)