The pilot malfunctioned after an engine failure that caused one of the four E-11A aircraft, an important and very scarce US weapon, to crash in Afghanistan.

The US Air Force earlier this week announced the results of an investigation of the 11-9358 E-11A plane crashed in Ghazni province, western Afghanistan on January 27, 2020, killing two crew members.

"The plane took off from Kandahar airport at 11:05. Mission was normal until the left engine crashed at 12:50, one hour and 45 minutes after departure. A turbine blade broke and flew out.

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However, the pilot misjudged the situation and assumed that the right engine had encountered a problem, even though it was a working engine normally.

Experts believe that the E-11A crew misjudged due to the loud bang and strong vibrations seconds after the turbine blades flew, similar to the situation on a Bombardier Global Express aircraft, the E series development platform.

The AIB chairman determined that the cause of the accident was pilot error, mainly when analyzing the engine malfunction, leading to wrongly shutting down the engine still working and making the aircraft no longer thrust.

At the time of engine failure, the E-11A was located about 70 km from Bagram military airport, more than 31 km from Kabul International Airport, and about 52 km from the forward base Shank.

"Unfortunately they could not restart the engine in the air, leaving the aircraft unable to roll back to Kandahar. Without much choice, the crew turned to forward base Sharana, but not enough altitude and speed.

Both pilots on board were killed in the incident.

E-11A BACN was developed by the US military from long-range business aircraft, Bombardier Global 6000. Only 4 were shipped, all staffed for the 430th Electronic Expeditionary Warfare Squadron and operated only.

The number of E-11A aircraft in service is so small that the Pentagon has no aircraft to train on US territory, the first time the pilots were piloting the E-11A when they were deployed to combat in Kandahar.

BACN is considered to be an effective solution, helping various US weapons "merge" as one and helps to connect ground troops with forward air traffic control (FAC) or joint air traffic control (