Minor Investigation Ongoing

UA1093 - Windshield Cracks at Altitude

Thursday, October 16, 2025 at 11:30 AM (GMT-6)
B737-8 MAX
United Airlines
Airspace over Utah

United Airlines flight UA1093 departed Denver International Airport (DEN) at approximately 11:00 a.m. local time on 16 October 2025 bound for Los Angeles International Airport (LAX). The Boeing 737‑8 MAX (registration N17327) was carrying 134 passengers and six crew members. While cruising at 36 000 feet over Utah, the cockpit windshield suddenly cracked. The flight crew declared an emergency and initiated a descent to 26 000 feet to minimize stress on the structure. Some speculation arose that an object such as space debris or a weather balloon may have struck the glass. The aircraft diverted to Salt Lake City International Airport (SLC) and landed without further incident. None of the 134 passengers and six crew were seriously hurt, though one pilot sustained a minor cut from shards of glass. The aircraft remained in Salt Lake City for repairs. The Federal Aviation Administration and United Airlines initiated an investigation into the cause of the windshield failure.

Aircraft & Operator Information

Aircraft
ModelB737-8 MAX
ManufacturerBoeing
Operator
NameUnited Airlines
IATAUA
Technical
RegistrationN17327
Additional
CountryUnited States

Incident Location

Departure
Destination
Emergency Landing
Incident Site
Route
Emergency Route
Displayed routes are geodesic arcs that show the shortest route between destinations. The arc does not reflect a flight's actual flight path.
Departure
AirportDEN
NameDenver International Airport
Destination
AirportLAX
NameLos Angeles International Airport
Incident Site
Airspace over Utah
Emergency Landing
AirportSLC
NameSalt Lake City International Airport

Weather Conditions (METAR)

Raw METAR KSLC 161730Z 27012KT 10SM FEW050 16/03 A2991
AirportKSLC
Time5:30 PM (GMT+0)
Temperature16.0°C
Dewpoint3.0°C
Wind270° at 12 knots
Visibility 16093 m
Cloud Layer 1Few (FEW) 5,000ft AGL
Pressure29.91 inHg
KSLC
5:30 PM (GMT+0)
Atmospheric
Temperature16.0°C
Dewpoint3.0°C
Pressure29.91 inHg
Wind & Visibility
Wind270° at 12 knots
Visibility 16093 m
Clouds
Layers Few (FEW) 5,000ft AGL

References

  • National Weather Service – METAR reports for Salt Lake City International Airport
Highlighted METAR entries relate to weather conditions within 30 minutes of the incident time.

Casualty Information

0Total Fatalities
1Total Injuries
140People Involved
Fatal
Injured
Uninjured
Unknown
Crew
0
1
5
0
Passengers
0
0
134
0
Total Onboard
0
1
139
0
Overall
0
1
139
0
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