Live bullet found aboard United flight forces passengers off plane for security sweep at Denver airport

A United Airlines formation from Denver to San Diego was delayed Thursday aft a unrecorded slug was discovered aboard the level earlier departure, prompting passengers to deplane portion information unit swept the aircraft.

United Flight 1302 was preparing to permission Denver International Airport erstwhile the slug was recovered during regular checks earlier the level taxied to the runway, according to FOX31 Denver, which had a subordinate of its quality squad aboard the flight.

"The atrocious quality is we recovered a unrecorded round, a slug connected the airplane," the talker said. "This is simply a information breach here, and everybody is going to person to deplane."

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A United Airlines level astatine Denver International Airport March 23, 2026. A abstracted United formation was delayed Aug. 13 aft a unrecorded slug was discovered aboard the craft earlier departure. (Al Drago/Getty Images)

Passengers were instructed to permission the Boeing 737-900 with their carry-on bags portion information unit searched the aircraft.

"We request everybody to deplane the craft with your carry-on bags. We’re going to person to transportation retired a information expanse of the craft aft the level is empty," the talker said. "We apologize for this."

The unit said astatine the clip that it did not cognize however the slug got aboard the craft oregon wherever it came from, according to FOX31.

United Airlines confirmed the incidental successful a connection to Fox News Digital.

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Travelers determination done a concourse astatine Denver International Airport. A United Airlines formation departing Denver was delayed Thursday aft a unrecorded slug was discovered aboard the aircraft. (Denver International Airport)

"United formation 1302 from Denver to San Diego underwent a information expanse aft a slug was discovered connected committee anterior to the flight’s departure," a spokesperson wrote. "Security unit cleared the aircraft, which aboriginal departed for San Diego."

United said the Boeing 737-900 was carrying 178 passengers and six unit members. The hose directed further questions astir the incidental to the Transportation Security Administration (TSA).

Flight 1302 had been scheduled to depart Denver astatine astir 1:25 p.m. It took disconnected astatine astir 3:41 p.m., much than 2 hours aft its scheduled departure, according to FOX31.

It was not instantly wide who the slug belonged to oregon however it ended up connected the aircraft.

A United Airlines Boeing 737-900 astatine Newark Liberty International Airport Jan. 15, 2026. A United 737-900 carrying 178 passengers underwent a information expanse successful Denver Aug. 13 aft a unrecorded slug was recovered aboard the plane. (Al Drago/Getty Images)

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Fox News Digital reached retired to TSA and Denver International Airport for further information.