Report: No issues found during pre-flight inspection of South Korea plane by airline.

U.S. investigators, including some from the aircraft's manufacturer, are examining the site of Sunday's South Korean budget airline Jeju Air's plane crash.

The Boeing 737-800 crash resulted in the death of 180 out of 181 people on board, making it one of the deadliest plane crashes in South Korea in recent years. Investigators are working to determine why the pilot decided to land the plane after declaring an emergency.

The BBC reported that the airline stated that a pre-flight inspection found "no issues."

The Guardian reported that flight data, including speed, altitude, fuel levels, and cockpit voice recordings, will be examined from the two flight recording devices, commonly known as black boxes, on a plane.

On Tuesday, airport safety experts questioned the placement of the embankment where a passenger jet crashed after skidding past the runway's end, as video footage showed.

Reuters reported that comments in the airport's operating manual, uploaded early in 2024, recommended reviewing the location of equipment on the embankment, which was too close to the end of the runway.

The Transport Ministry announced that the South Korean government will conduct safety inspections on all 101 Boeing 737-800s in the country. The inspections will focus on maintenance and operation records and will run for five days, ending on Friday.

A group of eight U.S. investigators, including one from the Federal Aviation Administration, three from the National Transportation Safety Board, and four from Boeing, visited the crash site on Tuesday to examine the wreckage. The findings of their investigation are not yet known.

The cause of the crash may not be determined for months, but Lee Jeong-hyeon, head of the Muan fire station, stated that workers are investigating various possibilities, including the possibility of the aircraft being hit by birds.

According to aviation consultant Mike Boyd, a bird strike on an engine may cause an engine to shut down, but the numerous redundant systems make it incomprehensible. Despite this, the plane is not in complete darkness, and the runway is 9,200 feet long. The plane came in hot and high, and it was traveling at a high speed. However, the real issue was not the bird strike, but the plane's approach.

The Associated Press and Reuters contributed to this report.