United Airlines Flight Makes Emergency Landing After Suspected Weather Balloon Collision

A United Airlines Boeing 737 Max en route from Denver to Los Angeles made an emergency landing in Salt Lake City last Thursday after its windshield was damaged at 36,000 feet over Utah. The aircraft, carrying 134 passengers and six crew members, landed safely without loss of cabin pressure.

Windborne Systems, a California-based company specializing in weather data collection, is investigating the incident. CEO John Dean expressed concern over the damage, noting that their balloons weigh only 2.4 pounds at launch and are designed to minimize collision risks. Dean stated, "I find this extremely concerning, and unacceptable in the case of a collision, regardless of what the official regulations are. It resulted in injury to a pilot, which I’m simply not okay with whatsoever."

The National Transportation Safety Board (NTSB) is conducting an investigation, with a preliminary report expected in the coming weeks. Windborne Systems has launched over 4,000 balloons, coordinating with the Federal Aviation Administration (FAA) by filing notices and sharing live position updates. In response to the incident, the company is adjusting its balloon software to reduce time spent between 30,000 and 40,000 feet and exploring new ballast designs to lessen potential collision impacts.

United Airlines referred inquiries to the NTSB, which has not provided further details during the ongoing government shutdown.