U.S. Navy  crewman AX1 R.T. Mack maintains an AN/APS-116 radar of a Lockheed P-3B <i>Orion</i> of Patrol Squadron VP-24 at Naval Air Station Keflavik, Iceland, in 1968.
USN
1968
U.S. Navy Naval Aviation News <a rel="nofollow" class="external autonumber" href="http://nanarchive.omnitecinc.com/20102012.aspx">[1]</a> <a rel="nofollow" class="external text" href="http://www.history.navy.mil/nan/backissues/1960s/1968/Aug68.pdf">August 1968</a>, p. 29.