Five days after a trespasser was struck and killed on a Denver International Airport runway, two law firms filed a Notice of Claim against the City and County of Denver — the first civil action to emerge from the May 8 incident. The claim seeks damages exceeding $10 million on behalf of passengers aboard the aircraft.
Among the firms is DJC Law, PLLC, an Austin, Texas-based firm that describes itself as the largest veteran-owned personal injury firm in Texas. Attorney Andres Pereira said the filing was driven, in part, by the airport’s own leadership.
“This was, in the words of Denver International Airport’s own CEO, a ‘horrible and preventable tragedy,'” Pereira said, according to CBS Austin. “Our clients deserve a full and transparent accounting of what the airport knew and what was done about it.”
What the Claim Alleges
A Notice of Claim is a formal prerequisite to a lawsuit against a public entity under Colorado law — not yet a filed suit, but it signals the legal challenge passengers intend to bring.
The claim alleges three distinct failures by Denver International Airport:
- Deficiencies in perimeter design that allowed the breach to occur
- Inadequate monitoring systems that failed to detect and track the trespasser in real time
- A failure to communicate the perimeter breach to air traffic control in time to halt runway operations
The third allegation is especially significant. As FODNews reported on May 13, airport security personnel received an intrusion alarm shortly before the man reached the runway — but attributed it to a nearby deer herd. The breach wasn’t confirmed until Flight 4345 was already accelerating on Runway 17L.
The CEO’s Words Now Work Against the Airport
CEO Phillip Washington’s public statements are central to the legal strategy. At a press conference, he acknowledged that “the person was out of view for a while” before the collision, and that the airport’s perimeter security program would be reviewed.
His most damaging phrase — that the incident was a “horrible and preventable tragedy” — now appears in the notice as a concession from the airport’s own chief executive, made before any litigation was filed.
In civil litigation, admissions by leadership carry significant weight — though courts examine full context, and Denver’s lawyers will likely argue Washington was expressing concern rather than admitting liability.
What Discovery Could Reveal
If the claim advances to litigation, discovery could compel Denver International Airport to produce documents it has not made public, including:
- Internal vulnerability assessments of the perimeter fence system
- Prior incident reports involving trespassers who breached the perimeter
- Communications between security staff on the night of May 8
- TSA inspection records and compliance history for the perimeter detection systems
Security expert Jeff Price, a former assistant director at Denver International Airport, told the Los Angeles Times that perimeter fencing “meets the standards for TSA, but the standards are not that robust.” He also noted that breaches happen dozens of times annually nationwide — suggesting systemic industry vulnerability rather than an isolated failure at Denver.
Context: The Incident and Its Aftermath
The collision occurred May 8 when a 41-year-old man scaled an 8-foot fence topped with barbed wire about 2 miles from the terminal and walked onto Runway 17L. The Airbus A321 carrying 231 passengers and crew struck the man with its right engine during the takeoff roll, triggering an engine fire and an aborted departure.
Twelve people sustained injuries in the emergency evacuation; five were hospitalized. Denver’s chief medical examiner later ruled the cause of death a suicide.
As FODNews first reported on May 9, the incident raised immediate questions about perimeter monitoring across the airport’s sprawling 53-square-mile footprint, enclosed by approximately 36 miles of fencing. The National Transportation Safety Board is separately gathering information about the passenger evacuation.
What Comes Next
Under Colorado law, Denver now has a set period — typically 90 days — to respond to the Notice of Claim before the claimants can proceed with a formal lawsuit. The city’s legal team has not publicly commented.
If a court finds the airport liable, it may prompt TSA to revisit perimeter detection standards at large-hub airports — standards that experts say lag far behind the scale of the problem.
FODNews will continue to follow this case as it develops.
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Sources
- CBS Austin — “Austin law firm to sue Denver over Frontier Airlines incident that killed a pedestrian” (May 13, 2026)
- Los Angeles Times — “Denver airport security initially missed trespasser who was killed by plane on runway” (May 12, 2026)
- FODNews — “DEN Security Alarm Dismissed as Deer Before Fatal Frontier Strike — Update” (May 13, 2026)
- FODNews — “Frontier Airlines Jet Strikes, Kills Trespasser on Denver Airport Runway During Takeoff” (May 9, 2026)
