Failed BP Blow Out Preventer Surfaces By Michael McIntee | September 6, 2010 LikeTweet EmailPrint More More on Environment Subscribe to Environment Follow this author Investigators are now examining the device that failed creating the worlds worst oil spill. On Saturday the a damaged Blow Out Preventer (BOP), along with the Lower Marine Riser Package (LMRP) Cap, were removed from the Gulf of Mexico. The BOP is considered evidentiary material, and is now under the supervision of the Deepwater Horizon Criminal Investigation Team and FBI Evidence Recovery Team. (Photo & Video by PO1 Thomas Blue, U.S. Coast Guard) Support this story and all the stories from The Uptake. Donate.