The last minutes of the South Korean air crash recorders have been lost.

The flight data and cockpit voice recorders of the South Korean passenger plane that crashed last month stopped recording four minutes before the crash, the country’s transport ministry announced.

The Jeju Air crash, which killed 179 people, became the deadliest air disaster on Korean soil. Only two cabin crew survived.

Investigators hoped the information on the recorders would provide insights into the critical moments before the crash.

The ministry said it would analyze what caused the “black boxes” to stop filming.

The recorders were first tested in South Korea, the ministry said.

When the data was found to be missing, it was taken to the US and analyzed by US security inspectors.

The plane was On December 29, it crashed at Mueang International Airport while traveling from Bangkok, skidded off a wall at the end of the runway and burst into flames.

Sim Jai Dong, a former accident investigator at the Ministry of Transport, told Reuters news agency that the loss of data from the crucial final minutes was surprising and that all power, including backup, could have been cut.

Many questions remain unanswered. Investigators have been looking into that role A bird strike Or weather conditions may have played a role.

They also focused on why the landing gear did not descend when the Boeing 737-800 hit the runway.