Dr Richard Haines, Ph.D., is a Senior research scientist at NASA Ames and has succeeded in founding the 2001 formed National Aviation Reporting Center on Anomalous Phenomena (NARCAP), as a consequence of his paper "Aviation Safety in America: A Previously Neglected Factor".
Three kinds of reported UAP dynamic behavior and reported consequences are addressed in Haines’ report, each of which can affect air safety:
More than one hundred documented close encounters between UAP and commercial, private, and military airplanes are reviewed relative to these three topics. These reports are drawn from several sources including the author’s personal files, aviation reports prepared by the Federal Aviation Administration (FAA), National Transportation Safety Board (NTSB), and the National Aeronautics and Space Administration administered "Aviation Safety Reporting System (ASRS)."
Here is Aviation Safety in America: A Previously Neglected Factor by Richard Haines, Ph.D, in Adobe Acrobat format (PDF File, 287Kb).
You can find further information on the topics of air misses in this website.