The Association of Flight Attendants-CWA publicly warned on October 7, 2026, that President Trump's proposed "Triumphal Arch" in Washington, D.C., could endanger planes using Ronald Reagan Washington National Airport. Union President Sara Nelson said the 250-foot structure would sit in the airport's final approach path, adding risk to airspace she says is already strained — the AP report via ABC News. The union's objection sharpened after the White House said the arch would be converted into a military complex able to host drones and snipers and store ammunition. Nelson tied the warning directly to the January 2025 midair collision near DCA that killed 67 people, arguing the airport cannot absorb a new obstacle in its flight path.
Table of Contents
- What is the arch, and where would it sit?
- Why the union says this is dangerous now
- Does this connect to the 2025 DCA midair collision?
- What have aviation experts and the FAA said?
- Where does the project stand, and what else is contested?
What is the arch, and where would it sit?
Trump's planned arch is a monumental structure proposed for the Washington, D.C., area, originally envisioned as a commemorative landmark. According to reporting from The New Republic, the site sits roughly 3,000 feet from Reagan National Airport, squarely within the airport's main approach and departure corridor — the narrow stretch of airspace planes use to land and take off.
That proximity is the core of the union's complaint. DCA is one of the busiest and most constrained airports in the country, with runways hemmed in by the Potomac River, restricted airspace, and a dense flight schedule. Any fixed structure near its approach path becomes a factor pilots and air traffic controllers must account for on every flight in or out.
Why the union says this is dangerous now
Nelson's warning came as the project's scope changed. Reporting via KSAT describes her objection to converting the arch into a military complex capable of hosting drones and snipers and storing ammunition. She said plainly: "DCA is already stretched to its limit, we do not need an obstacle taking up space in our flight path." Trump confirmed the shift himself, saying he agreed to the military-complex conversion at the Pentagon's "strong request," according to the AP's reporting via ABC News.
That turns a static monument into a site with active drone operations near one of the country's most congested approach corridors — a different risk profile than a fixed tower or statue. The union's warning carries industry weight beyond one leader's opinion. The Association of Flight Attendants-CWA represents roughly 55,000 flight attendants across 20 airlines, making this a network-wide safety concern rather than an isolated complaint.
Does this connect to the 2025 DCA midair collision?
Yes. Nelson explicitly linked her warning to the January 2025 midair collision over the Potomac River near DCA, in which a passenger jet and a military helicopter collided, killing 67 people, per the AP's account via ABC News.
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That crash exposed how little margin exists in DCA's airspace when military and commercial traffic overlap. Her argument is that the arch-turned-military-complex reintroduces a similar overlap: military equipment and operations sitting inside the same tight airspace where that fatal collision happened. For a union representing cabin crew who fly in and out of DCA regularly, the 2025 crash is the baseline risk the airport has not yet resolved, not a closed chapter.
What have aviation experts and the FAA said?
Before the military-complex plan surfaced, the FAA had already reviewed the arch itself. Per reporting via KSAT, the agency concluded the structure would not pose a hazard to aircraft, but recommended it be "appropriately marked" with a non-standard eternal flame and floodlights so pilots can see it at night or in poor visibility. That assessment predates the drone-and-sniper conversion.
Separately, a former pilot and accident investigator told NPR the arch's location in Memorial Circle is "inherently dangerous," and aviation experts cited by the Washington Post warned that basing drones there would raise collision risk in DCA's busy airspace — NPR, Sept. 17, 2026; the Daily Beast, citing the Washington Post. Those warnings target the new military use, not the original monument design the FAA signed off on.
- FAA review: arch itself judged not a hazard, with marking recommendations
- Former pilot/investigator: calls the Memorial Circle site "inherently dangerous"
- Washington Post-cited experts: drone basing would raise collision risk in DCA airspace
Where does the project stand, and what else is contested?
The arch faces a separate legal challenge unrelated to aviation safety. Three veterans and an architectural historian sued, arguing the project requires congressional approval, according to Fox5 DC and NPR.
The National Park Service flagged disruption to nearby historic sites but approved the project anyway. The White House has described the arch as one of the planned "most iconic landmarks" in the capital and has not addressed the aviation-specific safety concerns raised by the flight attendants' union or the aviation experts cited by NPR and the Washington Post. For readers tracking the project, the open questions are distinct: a legal fight over approval authority, a historic-preservation objection from the Park Service, and a separate, unresolved aviation-safety warning from the people who fly in and out of DCA every day.
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