Carl Chebi, the head of Naval Air Systems Command, which runs the Osprey program ... flying the aircraft three decades ago, 64 personnel have been killed and 93 injured in crashes.

WASHINGTON (AP) — The military has ordered new safety guidelines for a key part in all Osprey aircraft after a recent accident revealed the same problem that caused a fatal crash in Japan last year.

Using flight tracking data, CCTV and recordings of air traffic control, Sky News' Data and Forensics Unit examines the events that led to the disaster, which is thought to have killed 67 people.

On Capitol Hill, the House Oversight and Accountability Committee is investigating the controversial aircraft and its propensity to crash. And Democratic senators recently urged the Pentagon to ground ...