PPT-Â Â Â
What happened A derrick man signaled a crane operator with his right hand to lower a part of the blow out preventer down on to a fixing  His left hand was resting
Download Presentation
"Â Â Â " is the property of its rightful owner. Permission is granted to download and print materials on this website for personal, non-commercial use only, provided you retain all copyright notices. By downloading content from our website, you accept the terms of this agreement.
Presentation Transcript
Transcript not available.