Earlier, officials said flight data and cockpit voice recorders stopped the recording four minutes before the destruction.
Experts who blew the same type of aircraft involved in the accident have also questioned the runway as well as the presence of concrete barriers – some people have suggested that if they were not there, the number of accidents was reduced. Had
The concrete structure has a navigation system that helps the aircraft landing, called localizers.
The South Korean Ministry of Transport Ministry said the system could be found in other airports in the country and even abroad.
Last week, officials announced that they would change the solid obstacles used for navigation at seven airports across the country. Following the review, their runway safety areas will also be adapted at seven airports.
The preliminary report is presented to the UN Aviation Agency and officials from the United States, France and Thailand.
