A preliminary National Transportation Safety Board report has linked White House construction work to an August 4 close call between Marine One and an Envoy Air Embraer E170 near Ronald Reagan Washington National Airport. Investigators said the helicopter was operating from the Ellipse while the usual White House departure point was temporarily relocated, and communication problems may have prevented the required notice from reaching air traffic control in time.
The Envoy Air flight, 3742, was bound for Pensacola, Florida, and both aircraft continued safely without damage or injuries. The NTSB described the findings as preliminary and kept the investigation open, stopping short of a final conclusion on causation.
The report points to radio and line-of-sight limitations tied to the temporary helicopter location during work on the White House, including construction connected to Trump’s ballroom project. The FAA has already responded by relocating an antenna and changing procedures to reduce the risk of a repeat incident. For controllers in the Washington area, the case highlights the operational strain created when presidential movements intersect with tightly managed commercial traffic.