Key data is missing from the black boxes of the Boeing Co 737-800 that crashed on the runway of a South Korean airport last month.
Both the flight data and cockpit voice recorders suspended recording for the final four minutes before the plane ploughed into a structure at the end of the runway, the Korean transport ministry said in a statement Saturday.
A joint investigation team comprising Korean and US officials is trying to determine what caused the devices to stop working, according to the statement.
Authorities are still struggling to find out the cause of the country’s deadliest aviation disaster that killed 179 out of 181 on board. The Jeju Air Co jet heading from Bangkok to Muan International Airport in South Korea was attempting an emergency landing on December 29 when it skidded on its belly off the runway and exploded after hitting the structure. The incident occurred a few minutes after the airport control tower had warned the pilot of the risk of bird strikes.
