Many passengers complained that they felt 'like zombies' and could not stay awake. The first officer eventually managed to land the plane safely. Some passengers could not be woken even after landing. The incident was described by Swedish air safety authorities as 'extremely serious'. They reportedly found that faulty seals allowed engine oil, containing organophosphates, to pollute the cabin.
Many major airlines use the plane and the royal family has three.
Some aviation experts believe the jet may have a fundamental design flaw. I can't understand why the authorities let it keep flying. BAE Systems, the manufacturer, stresses the aircraft is internationally certified as safe by all the major aviation authorities, including the FAA in the United States and the CAA in Britain. To speculate now on what the cause might have been is totally wrong.