United A21N near Newark on Dec 6th 2025, pressurization problem
Last Update: December 8, 2025 / 18:53:01 GMT/Zulu time
Incident Facts
Date of incident
Dec 6, 2025
Classification
Incident
Cause
Pressurization problem
Airline
United
Flight number
UA-2100
Departure
Newark, United States
Destination
Chicago O'Hare, United States
Aircraft Registration
N14504
Aircraft Type
Airbus A321-Neo
ICAO Type Designator
A21N
A replacement A321-200N registration N14546 reached Chicago with a delay of about 4 hours.
The occurrence aircraft returned to service about 3 hours after landing.
Aircraft Registration Data
Incident Facts
Date of incident
Dec 6, 2025
Classification
Incident
Cause
Pressurization problem
Airline
United
Flight number
UA-2100
Departure
Newark, United States
Destination
Chicago O'Hare, United States
Aircraft Registration
N14504
Aircraft Type
Airbus A321-Neo
ICAO Type Designator
A21N
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