Mr Kiattisak (10w driver) was allocated 10w to deliver product to 4 x express stores in Samutprakarn province on April 29, 2016
He start his shift at 4:30hrs and departed DC at 6:58hrs
He return from trip and arrived DC at approx. 16:30hrs, refill the gasoline and then driving truck to de-kit area to unload return equipment. When he drive to de-kit area there was another 6w parking and on process of unload return equipment
He then stop truck approx. 2 meters away from the 6w truck and apply the parking break, exit the cabin without switches the engine off to assist 6w driver (Mr Boonlert) to unload return equipment.
Whilst he unloads equipment at rear of 6w and Mr Boonlert unload inside the container, the 10w truck was roll away and hit with 6w truck on container left side.
He was re-entering to the 10w and drive truck park nearby the scene to inspect the damage of vehicle but was not immediate escalate the case to supervisor and continue unload the product until finish then drive truck to on-site parking yard.
He report this case to Mr Nirut Buntun (line manager) regarding to the accident.