The flight, operated by Jeju Air, was landing when it went off the runway in Muan, in the country’s southwest. Only two people survived the crash.

Investigators plan to examine the tail and landing gear of the aircraft at the crash site of the passenger jet in Muan, Republic of Korea. They will also retrieve and analyze the flight data recorder 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.

South Korean investigators said Saturday they were close to finalizing the transcript of the cockpit voice recorder from a fatal plane crash that left 179 people dead last week. The recording may hold clues to the final moments of Jeju Air flight 2216,

South Korean officials are looking for the cause of a passenger jet crash that killed 179 people, in one of the deadliest disasters in the country’s aviation history.

After the deadly Jeju Air crash in South Korea this week killed 179 people, the South Korean government said that it would be inspecting every domestic model of the plane involved, the Boeing (BA) 737-800.