Jeju Air passenger plane accident...Concrete embankment may have exacerbated the damage = South Korea

The United States and South Korea have begun full-scale investigations into the cause of the Jeju Air passenger plane crash that killed 179 people in South Korea.
The team climbed onto the localizer (landing guidance safety facility) about 250 meters from the runway and looked around.
The Zar is built on a two-metre high concrete embankment covered with soil. The concrete construction, rather than a more brittle material, is what could have caused more casualties in the event of a collision with an aircraft.
Investigators climbed onto the localizer and, after digging up dirt and rubble with shovels, discovered a large block of soil containing a mixture of rubble and metal parts that appeared to be the fuselage of a passenger plane.
Excavators were then used to lift the rubble, move it off the bank and into a nearby field, while investigators continue to shovel the remains of the bank.
According to the Fire and Disaster Management Agency, at around 9:03 a.m. on the 29th of last month, a Jeju Airlines flight from Bangkok, Thailand, was attempting to land on the runway at Muan International Airport when it landed on the runway.
When the plane attempted a belly landing without the wheels down, it collided with the airport's outer wall and most of the aircraft was engulfed in flames.
The plane was burned to the point where almost nothing remained. A total of 181 people were on board, including 175 passengers and six crew members, and all but two Korean crew members died. This accident was the first aircraft accident to occur in South Korea.
This was the most serious human casualties of the disasters that have occurred in the past. On the other hand, the main cause of the expansion of the disaster is said to be the heavily built-up concrete embankments.
Structures near runways must be built in such a way that they are vulnerable to destruction when impacted by a plane, according to researchers and experts.