The test Testing was a simulation of an electrical power outage to aid Assistance the development of a safety procedure for maintaining cooling water circulation until the back-up generators could provide Supply power .

Operation Dark Winter was the code name for a senior-level bio-terrorist attack Attack simulation conducted Action from June 22–23 , 2001 .

The simulation was then designed Creating to spiral out of control .

Subsequently , India established Creating computer simulation capability to predict the yields of nuclear explosives whose designs are related to the designs of explosives used Using in this test Research .

Detailed information from the report also revealed Know that the pilots were trained to conduct the circling Motion approach Arriving in the airline 's simulator only for Beijing Capital International Airport and never conducted Action a simulation for the circling approach Arriving to Gimhae Airport 's runway 18R .

The investigators reproduced Creating the fire twice , once to determine Deciding whether grease under the escalator was ignitable , and the other to determine Deciding whether a computer simulation of the fire—which would have determined the cause of the flashover—was accurate .

This sudden transition in intensity , and the spout of fire , was due to the previously unknown trench effect , discovered Know by the computer simulation of the fire , and confirmed Check in two scale model tests .