NTSB links Marine One near-miss with passenger jet to White House construction

Line-of-sight communication failure

On 4 August 2026, President Donald Trump's Marine One helicopter experienced radio communication failures that led to a close proximity incident with a commercial passenger jet near Ronald Reagan Washington National Airport. According to a preliminary report released on 27 August 2026 by the National Transportation Safety Board (NTSB), construction of a 90,000-square-foot ballroom on the White House grounds forced the temporary relocation of the presidential takeoff pad from the South Lawn to the Ellipse. Technical investigators found that this temporary departure point south of the White House did not provide an adequate direct line of sight for necessary radio communications with the airport tower while construction proceeded. Recordings from the air traffic control facility revealed that the Marine One crew's initial transmission was not received at all, while a second attempt was broken and completely unreadable.

Loss of required flight separation

Without the standard three-minute departure notice from Marine One, air traffic controllers permitted an Envoy Air regional jet bound for Pensacola, Florida, to take off from the airport runway. As the commercial aircraft ascended, Marine One lifted off from the Ellipse heading toward Joint Base Andrews in Maryland. At their closest point, the two aircraft came within 0.82 miles (1.3 kilometers) laterally and 700 feet (215 meters) vertically of each other, breaching the 1.5-mile buffer required by federal aviation regulations. Pilots aboard the Envoy Air flight received an automatic alert from their traffic collision avoidance system shortly after takeoff, though they reported never establishing visual contact with the helicopter. Marine One pilots visually identified the ascending passenger aircraft and paused their climb until the jet cleared the area.

Failure of backup relay procedures

Communication vulnerabilities between presidential flight crews and the airport tower had been identified before the incident. Air traffic controllers and Marine One pilots met one week prior to discuss missed three-minute departure warnings and established an alternative protocol to route departure alerts through a third-party facility. Under this arrangement, the helicopter crew was instructed to relay departure notifications through the flight facility at Joint Base Anacostia-Bolling. However, on 4 August, this backup relay effort also failed to reach controllers at Reagan National Airport. The simultaneous operation of both aircraft breached protocols established after a 29 January 2025 midair collision between an airliner and a US Army Black Hawk helicopter near the same airport that killed 67 people, after which the Federal Aviation Administration required all airport departures and arrivals to halt when a helicopter operates on a conflicting path.

Technical fixes and official reaction

Following the incident, technicians addressed the communication issue by moving the radio receiver directly onto the tower at Reagan National Airport, with subsequent tests confirming an operational connection. Both the White House and aviation authorities stated that the president was not in danger during the loss of separation. White House spokesman Kush Desai defended the flight crew while noting existing safety protocols.

Marine One flights are piloted by the finest aviators in the world, and the White House maintains the utmost confidence in these patriots and other security officials who are responsible for ensuring the president's safety.

Construction on the White House ballroom project continues on a schedule of 20 hours a day, seven days a week, following a Supreme Court ruling the previous week that temporarily permitted work to continue during ongoing litigation over the project.