In the latest on the Ethiopian Airlines crash, a preliminary report states that pilots followed all due procedures to try and regain control of the plane. The report indicates that software may have played a role in the crash which killed all 157 on board. CGTN's Girum Chala has more.

The Ethiopian ministry of transport, Ethiopian Airlines, Boeing and other stakeholders have participated in the investigation process. The international civil aviation organization rules especially Annex 13 has been strictly followed. And the preliminary report said the Boeing 737 Max 8 plane crashed due to a faulty flight control device.

DAGMAWIT MOGES ETHIOPIAN MINISTER OF TRANSPORT "The crew obtained the license and qualifications to conduct the flight. Repetitive uncommanded aircraft nose down conditions are noticed. The crew performed all the procedures repeatedly provided by the manufacturer but was not able to control the aircraft."

Answering for some media claim that the flight control device has been damaged by a foreign object before the 737 max 8 took off from Bole international airport, investigator in charge of the team Amdiye Ayalew said.

AMDIYE AYALEW, HEAD ACCIDENT INVESTIGATION BUREAU "We have not found anything that supports the claim that damage was caused by a foreign object against the flight control system. The data recorded does not indicate this was the case. We can confidently tell you that."

So what is next? The government said it is preparing to press charges against the manufacturer, Boeing.

DAGMAWIT MOGES ETHIOPIAN MINISTER OF TRANSPORT "As the Ethiopian government, we are going to carry out the legal procedures as per the international procedures and as per our legal proceedings."

The investigators have also recommended the manufacturer Boeing to review and correct the flight control unit and for other authorities to confirm changes made before the grounded 737 Max 8s can fly again.

GIRUM CHALA ADDIS ABABA, ETHIOPIA "The investigation of the Ethiopian airlines Boeing 737 max 8 flight number 302 which crashed 6 minutes into air destination Nairobi, Kenya will continue for at least six months or a year. The investigators have said the full report will come up with all other details and recommendations. But one thing is clear Boeing will have lots of assignments to do before it puts the crash stories behind it. Girum Chala, CGTN, Addis Ababa, Ethiopia."