After analyzing the devices, the U.S. National Transportation Safety Board concluded​ that both the flight data and cockpit voice recorders stopped working about four minutes before the crash.

Investigators probing the Jeju Air crash that killed 179 people last month have found feathers in both engines, according to South Korean media reports, with a bird strike being examined as one possible cause.

A Jeju Air aircraft crashed in South Korea on December 29, killing 179 people. Bird feathers and blood has been found in the engines of the plane.

The deadliest accident in aviation history occurred in 1977, when two Boeing 747 jumbo jets collided on a foggy runway on the Spanish island of Tenerife, killing 583 of the 644 people on board the planes. Spanish investigators blamed the captain of the KLM 747 for taking off without clearance from air traffic controllers.

Boeing has issued a statement after one of its 737-800 jets crash landed in South Korea on Sunday, killing at least 174 people. In a statement provided to Newsweek, the airplane manufacturer said it was in contact with the airline Jeju Air and was "ready to support them."

The Jeju Air 737 crash in South Korea on Sunday that killed all but two of the people onboard was in many respects as baffling as it was tragic. Given the scant information currently available, it’s hard even to piece together a coherent picture of what happened.

Investigators found bird feathers and blood in the two engines of the Boeing jet that crashed in South Korea on Dec. 29, a person familiar with the probe told Reuters on Friday. Jeju Air 7C2216, which departed from the Thai capital Bangkok for Muan county in southwestern South Korea,