The investigation into the April 29 crash of a National Air Cargo Boeing 747-400 at Bagram Air Base in Afghanistan is being aided by a video caught by a witness in a nearby vehicle that shows the aircraft in a steep climb shortly after takeoff, followed by wing rolling and an eventual stall before the aircraft struck the ground. Seven people aboard the Boeing died in the crash.
The NTSB has blamed the April 2, 2011, flight-test crash of a Gulfstream G650 on an aerodynamic stall and an uncommanded rolling moment that the pilots were unable to control. However, the Board also notes that it was the manufacturer’s rush to complete its aggressive flight-test schedule for obtaining certification that set the stage for the stall and uncontrollable roll.
DeCrane Aircraft Seating has announced a patent on core technology around which a new line of lightweight 9-g and 16-g executive single and double passenger seats is being built for super-midsize and large business jets. The patent covers design of a new positive locking brake mechanism to control seat rotation that allows infinite swivel adjustment. At the same time, it prevents uncommanded rotation.