NYC, New York LaGuardia Airport shut down one of its 2 runways Wednesday to conduct precautionary structural testing, the Port Authority of New York and New Jersey said. In a statement, the Port Authority said a 2” depression was found adjacent to Runway 4/22 during an airfield inspection. The runway was shut down at 5 p.m. so crews could conduct testing, identify the cause of the depression and perform stabilization work, if necessary, Port Authority said. "There is no immediate safety concern and the runway is being closed proactively," the Port Authority said in a statement, in part. The Port Authority said it hopes to complete the assessment and conduct any necessary repair work overnight and reopen the runway by Thursday morning. LaGuardia's other runway, Runway 13/31, will remain open. https://www.cbsnews.com/newyork/news/laguardia-airport-runway-shut-down-structural-testing/