South Korea airport overhaul after fatal Jeju Air crash

Seven domestic airports, including Muan, were found to have embankments or foundations made of concrete or steel that needed to be changed, the ministry said in a statement.

It said it would prepare measures to improve the structures in January and aimed to complete the improvements by the end of 2025.

The government has also finished its inspection of six domestic airlines flying Boeing 737-800s and found violations at some operators including exceeding the pre- and post-flight inspection period and non-compliance with procedures to resolve plane defects or passenger boarding.

The transport ministry did not immediately respond to a request for comment on whether Jeju Air was among the airlines where violations were found. 

A Jeju Air spokesperson could not be immediately reached.

A special safety inspection of the country's major airport facilities will also take place until January 21, the ministry statement said.