The installation and use of ADS-B In aboard aircraft in addition to the use of ADS-B Out tops the list of recommendations made by the National Transportation Safety Board (NTSB) in its final report on the midair collision near Ronald Reagan Washington National Airport (KDCA) in January 2025.
The use of ADS-B Out and ADS-B In can give pilots better situational awareness as they can “see” where other traffic is, provided that traffic is also using ADS-B Out and In.
