First, accident after 

May 14, 2004, a team meeting before classes Zhou squad led by captain Lee Yoon arrangements, a high, Kwak, Yang, Wu, who went to North 11 Joint unloading injection pump rig, hydraulic pumps station. Zhou and others to the north at the first hole 11 Joint Water pump station after unloading rigs and put away, and began to prepare unloading injection pump, due to the injection pump too, fear direct unloading break, the squad leader Yang Zhou arrangements go north a 11 Joint construction site by a team down chain crane unloading, reversing chain borrowed Yoon got compiled a wire noose hanging in the screw bolt down the chain will hang for lifting the injection pump. When the injection pump hanging from the flatbed of about 200mm bolt around the dregs, then immediately ordered a halt after the discovery Zhou squad and shouting standing inside injection pump injection pump high side hold out in a hurry, the high of a after leaving Yinmou began to pull down the chain, just pull the two anchor is pulled, injection pump to drop to the back side. 

Second, the cause of the accident analysis 

1, with the inverted chain lifting injection pump, pull the bolt, is the direct cause of the accident. 

2, when the anchor was found abnormal changes occur, there is no time to stop work, is an indirect cause of the accident. 

Third, the division responsible for the accident 

1, Yinmou abnormal changes in the bolt, continue lifting injection pump, directly responsible for the accident. 
2, the squad leader Zhou is responsible for the safety of people on duty on the lifting points are not carefully observed, nearly causing an accident, have the primary responsibility for the accident. 

3, other workers on duty when the danger is no time to stop, were liable for the accident UNPROFOR mutual responsibility. 

Four, accident prevention measures 

1, when handling equipment to advance to the staff accountable lifting tips and precautions, find a good solid lifting points, ensuring safe and reliable. (Security Management AC -www.riskmw.com) 

2, during the lifting operation, anomalies occur when lifting points, lifting must be stopped immediately. 

Five, accident experience and feelings 

This lifting equipment from the attempted assault incidents remind us of what work should be carefully, but cautious, eye wash, Shouqin, Tuiqin, or endanger the safety of an accident will occur.