The story

The National Transportation Safety Board and other agencies are investigating not only what went wrong, but also what went right Thursday when a US Airways flight ended in the Hudson River without any deaths or major injuries.

"Having a successful ditching is a very rare event," Kitty Higgins of the NTSB said Friday.

"We'll not only celebrate what worked here, but also learn what worked. So many times you're only focused on what went wrong. A lot of things went right yesterday."

Divers struggled against strong currents and frigid water temperatures to retrieve critical pieces of the puzzle from the Hudson River, where US Airways flight 1549 ended up less than three minutes after it took off from New York's LaGuardia Airport Thursday afternoon.

The flight data and cockpit voice recorders -- both critical to determining exactly what happened -- remained attached to the tail section of the aircraft, which was still partially submerged but secured to moorings. Watch a former pilot tell how to water-land a plane Read full article »

CNN's Mike Brooks, Jeanne Meserve, Richard Davis and Mike Ahlers contributed to this report.

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