investigators found evidence of a bird strike on a passenger plane that crashed in South Korea in December, killing 179 people. The feathers and blood stains on both engines were from the Baikal teal, a migratory duck. The inquiry focuses on the bird impact and a concrete structure at the runway’s end. The Boeing 737-800 was en route to Muan International Airport when it crashed after hitting a bird near Bangkok. Pilots were flying toward the airport when they received a cautionary message about bird activity, and a mayday signal was sent as they approached. The plane belly-landed without its landing gear deployed, overran the runway, and exploded after crashing into the concrete structure. Experts are questioning the presence of these barriers, which aid aircraft navigation, and authorities have planned changes to similar structures at other airports.
Source: https://www.bbc.com/news/articles/c5y6j32p7lxo