Keywords: US Navy 070619-N-4774B-003 Aviation Structural Mechanic 1st Class Trevor Knowles displays the oil line wrench he invented.jpg en SAN DIEGO June 19 2007 - Aviation Structural Mechanic 1st Class Trevor Knowles displays the oil line wrench he invented The wrench allows for the proper removal and reinstallation of a new oil line in the Navy's newest primary maritime-dominance helicopter the MH-60R U S Navy photo by Mass Communication Specialist 3rd Class Daniel A Barker RELEASED 2007-06-19 070619-N-4774B-003 Navy http //www navy mil/view_image asp id 47300 U S Navy photo by Mass Communication Specialist 3rd Class Daniel A Barker PD-USGov-Military-Navy Aviation Structural Mechanic Naval Base San Diego in the 2000s |