Marine Col. Arthur Tomassetti, the 33rd Fighter Wing vice commander, walks away from his F-35B Lightning II after a sortie March 1. F-35 A and B operations began again March 1 at Eglin Air Force Base, Fla., after a two-week cautionary suspension grounded the aircraft. An engine blade crack discovered at Edwards Air Force Base, Calif. Feb. 19 caused the recent suspension.(U.S. Air Force photo/Maj. Karen Roganov)