In the morning of 12 April 2021, the Bosun of Asian Champion received permission to prepare the unloading operation by using the ship crane.

After finished the work on the Crane No. 1, the Bosun with Cadet A and Cadet B began to prepare the Crane No. 3. The Bosun went up to the crane cabin No. 3, while the two cadets went up to the resting platform on the turret of crane No. 4.

The tasks that the cadets were supposed to finish were securing the chain for jib, securing electric wire and the last was to stand in a clear area from Crane No. 3 boom. All of those activities were done on the resting platform.

At around 08.06 LT, when the boom just out of the crane resting point, the tail (extra tip down part) of the boom swung and hit the Cadet B. He immediately collapsed on the resting platform and remained unconscious. Following the accident, the Cadet B was taken to a local hospital.

At around 09.20 LT, the Cadet B was received by the medical staff of emergency unit of the hospital. However, the medical team declared that the Cadet B had gone before he arrived at the hospital (death on arrival).