Air Crash Investigations
                    
                     
                    
                    
                    
                    
                    
                
                The US National Transportation Safety Bureau (NTSB) has adopted a study which shows that single engine aircraft with glass cockpits had a safety record no better than those with conventional instruments. The study, which was initiated over a year ago, looked at the accident rates of over 8000 small piston powered aeroplanes manufactured between 2002
									
									
									
									
									

