The midair collision that killed 67 near Washington and the fiery plane crash in Philadelphia and a plane crash in Alaska that killed 10 are only the most high-profile disasters.

The aircraft manufacturer has vowed to finally shut production lines that fixed planes instead of building new ones.

Seconds after taking off from San Francisco, a United Airlines Boeing 747 shudders violently as one of its engines starts to fail. The intense vibrations terrify the passengers, and are so strong that ...