The preliminary report was released by the Aviation and Railway Accident Investigation Board on Monday in South Korea.

Investigators say they have found evidence of a bird strike on a passenger plane that crashed in South Korea in December and killed 179 people. The feathers and blood stains on both engines of the Jeju Air plane were from the Baikal teal,

Preliminary investigation into the Air Busan Airbus A321 fire at Gimhae has not found evidence of dangerous items brought on board the twinjet, and no immediate indication that the blaze was terrorism-related.

Bird feathers and bloodstains were found in both engines of the Jeju Air plane that crashed in December, according to a preliminary investigation released Monday.

South Korean officials investigating the fatal Jeju Air crash have published a preliminary report of the accident.

Jeju Air Flight 2216's deadliest crash investigation has revealed the presence of bird feathers and blood in the plane engines.According to SCMP, the South Korean officials said on Monday, January 27,

Both engines of the Jeju Air plane that crashed last month contained duck remains, according to a preliminary report.

The exact cause of the Jeju Air crash remains unclear, and the investigation is complicated because the black boxes stopped recording four minutes before impact.

The first report on last month’s Jeju Air crash in South Korea confirmed bird strikes in the plane's engines, though officials haven't determined

STORY: South Korea has released the initial findings of a probe into the crash of a Jeju Air flight last month. But mysteries remain. All 175 passengers and four of six crew were killed in the incident,