A missing 'plane - which remains a mystery. A British Airways flight - crash landing at Heathrow. We've seen the reports on the news but, still, aircraft safety has come a long way since the early days of passenger travel.
When planes do crash, the men and women of the Air Accident Investigation Branch are some of the first people to arrive. Many damaged craft are taken to the AAIB's base - at Farnborough - for further examination.
It doesn't often let the cameras in. But, in the first of two special reports, Divya Kohli has been given exclusive access - to see the work going on behind-the-scenes. She spoke to David Miller, the Deputy Chief Inspector of the AAIB
They call them the "black boxes". The flight recorders which can provide crucial information in the event of a 'plane crash. But they're actually red, not black?
For the men and women of the Air Accident Investigation Branch, these metal boxes are vital to their work. The team, based at Farnborough, are often the first at a crash scene, anywhere in the world.
In the second of her special reports, Divya Kohli has been given exclusive access to the work the AAIB is doing in Hampshire. She spoke to Chris Scott, a Flight recorder specialist at AAIB