55. December 29, 1967 : C-130E(I) Rivet Clamp 64-0547, c/n 4040, of Detachment 1, 314th Tactical Airlift Wing, crashed into mountain 65 kilometers northeast of Dien Bien Phu , after dropping leaflets. 56. February 10, 1968 : USMC KC-130F BuNo 149813, c/n 3719, of VMGR-152 , crash landed on runway at Khe Sanh