Muan: Two additional investigators from Boeing Co. have joined the ongoing investigation into the Jeju Air crash at Muan International Airport, bringing the total number of U.S. team members to 10. This includes six representatives from Boeing and three from the U.S. National Transportation Safety Board, according to government sources on Wednesday. The expansion of the U.S. team aims to ensure a comprehensive examination of the tragic accident.

According to Yonhap News Agency, the U.S. investigative team arrived in South Korea on Monday and proceeded directly to Muan, where they initiated a collaborative investigation with the Korean team. The Korean team is led by the Ministry of Land, Infrastructure and Transport. The joint effort commenced one day later, focusing primarily on the airport's navigation system, specifically a localizer that aids in aircraft landings.

The localizer, which is installed on a concrete structure at Muan International Airport, has been identified as a factor that potentially worsened the severity of casualties in the Jeju Air crash. The accident occurred when a Jeju Air B737-800 aircraft belly-landed at the airport and collided with the structure, leading to an explosion. The crash resulted in the loss of 179 lives out of the 181 passengers aboard.