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A United Airlines flight from Denver to Los Angeles likely collided with a weather balloon over Utah on Oct. 16.

The collision damaged the plane's windshield, forcing an emergency Salt Lake City landing.

NTSB says it's still investigating the incident.

SALT LAKE CITY — The captain of a United Airlines flight bound for California said he noticed an object "distant on the horizon," but was unable to adjust the plane's course before a midair collision that smashed the plane's windshield, forcing an emergency landing in Salt Lake City last month.

National Transportation Safety Board officials released harrowing details about the incident over Utah in a six-page preliminary report on Thursday, determining that the object was likely a commerci

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