Preliminary report released on Jeju Air plane crash

South Korean authorities have released a preliminary report on last month's deadly Jeju Air plane crash. It says that feathers and bird blood stains were found in both engines.

Investigators had already found that the plane's flight and cockpit voice recorders had stopped recording almost simultaneously about four minutes before the crash. According to the latest report, the recordings stopped when the plane was about two kilometers from its originally planned landing point, while it was descending.

According to the report, after the pilot issued a Mayday call and told ground control that it was to make a second landing attempt, the plane began its ascent. The aircraft then attempted to land from the opposite end of the runway but crashed.