The Cebu Airport overrun accident happened 2 years before the Muan one (0 fatalities).
Eventually, the right main landing gear (RH MLG) hit a protruding 15cm cement section at the edge of Runway 22 and got damaged. This took out the main deceleration systems (brakes, spoilers, and thrust reversers), leading to a failure to slow down and a subsequent overrun. The mechanical reason all braking methods failed was the landing gear damage, which destroyed the sensors, cables, and hydraulic pipes needed for braking and decision-making.
Just like Muan, the landing gear, brakes, spoilers, and thrust reversers were all dead.
Back then, the localizer was built with a frangible (easy-to-break) structure; that thing sitting on top of the plane in the pic is the localizer.
The localizer actually helped induce deceleration so the plane could stop.
The difference between Muan and Cebu is that Cebu is a major hub used by airlines from all over the world,
while Muan is an airport used by only a tiny handful of domestic and international airlines.
In the first place, concrete structures shouldn't even be there, and even dirt walls shouldn't exist.
What if Incheon Airport had a dirt wall on the runway like that? People would've absolutely lost their minds.
Because it's Muan and there are only a few flights a day anyway, they just tried to keep it quiet.
If they put a dirt wall at Incheon, there would've been a massive uproar.
It's a ridiculous structure to begin with, so I guess it's a relief they've finally admitted it and owned up to the mistake.
If they had insisted until the end that nothing was wrong, it would've been an international embarrassment.
"Users are locked in a heated debate over whether a dirt mound at Muan Airport caused a recent accident, with some calling for accountability while others argue over technicalities and official findings."
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