In Memory Of Our Fallen. This coin is 1 1/4 by 2 1/2 inches gold plated version. NOTE: Acquired from a NAVSPECWAR member on the West Coast. We have donated 2 of these memorial challenge coins to a 9-11 Memorial Museum. Letter NOT part of the deal. 2011 Chinook shot down in Afghanistan. On 6 August 2011, a U. Military helicopter, call sign Extortion 17, was shot down while transporting a quick reaction force. Attempting to reinforce an engaged unit of Army Rangers. The resulting crash killed all 38 people on board25 American special operations personnel, five United States Army National Guard and Army Reserve crewmen, seven Afghan commandos. And one Afghan interpreteras well as a U. It is considered the worst loss of U. S Military life in a single incident in the Afghanistan campaign, surpassing Operation Red Wings. The 30 American deaths represent the greatest loss of U. Military lives in a single incident in the decade-long war in Afghanistan. That began in 2001. Never personally given any of the coins. All coins are guaranteed to be in excellent condition unless otherwise specified above. The free listing tool. The item “Extortion 17 Memory of Fallen SEAL Teammates Aug 2011 Navy Challenge Coin” is in sale since Tuesday, May 5, 2020. This item is in the category “Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Challenge Coins”. The seller is “rolyat11″ and is located in Panama City, Florida. This item can be shipped worldwide.