Death and Denial: Malfunctioning elevators, hydraulics problems or pilot fatigue? What caused the deaths of 217 people in a catastrophic air crash off Nantucket? (S3, ep 8)

Helicopter Down: Two crew members and 16 oil rig staff were killed when a helicopter flying from Aberdeen to a North Sea rig hit a storm. But was the weather entirely to blame? (S3, ep 7)

Mistaken Identity: Two hundred and ninety people died when a military radar operator mistook a civilian aircraft for a hostile F-14. But how did it happen? Experts investigate. (S1, ep 6)

Missing over New York: Seventy-three people were killed when a low-on-fuel flight was caught in a holding pattern over the Big Apple. Who or what was to blame for the tragedy? (S2, ep 6)

Bomb on Board: A passenger is left dead and another 10 injured when a notorious terrorist sets off a bomb on Philippine Airlines Flight 434. (S1, ep 4)

Lost!: The pilots were experienced and the navigation system was sophisticated, so why did delayed American Airlines Flight 965 fly into a mountain? Experts investigate. (S2, ep 5)

Fight for your Life: The lives of FedEx flight 705's crew were thrown on the line when they came under attack above Memphis. Could they control both the plane and their hijacker? (S1, ep 5)

Deadly Crossroads: Pilots of a Russian plane carrying school children are forced to make a life or death decision when they get caught in the path of a cargo plane. (S2, ep 4)

Out of Control. Minutes after take-off, the tail fin blows off a huge Boeing 747. Out of control over Tokyo, can the pilots save the stricken plane and its 509 passengers? (S1, ep 3)

Killing Machine: In 1994, an Air France flight carrying 180 passengers was hijacked by terrorists. Their aim was to explode it over Paris. Could French special forces stop them? (S2, ep 3)