Unimatic

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Unimatic is a computer system installed by Tata Infotech for United Airlines in 1997[1] to track and disburse vital flight data such as scheduling, aircraft weight, and aircraft balance. A massive failure of the system early on 8 August 2025 led to 35% of all United flights being delayed and 7% cancelled throughout the United States, with concomitant effects internationally. Furthermore, the FAA issued an alert cancelling all United flights to O'Hare International Airport; as of 8:45 p.m. CDT, United flights departing from there were delayed an average of two hours.[2] Ground stops were necessitated in Newark, Denver, Houston, and other airline hubs as well as in Chicago.[3] United averred that it was not a cybersecurity incident and that it was a "controllable situation", with passengers being compensated.[4]

See also

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References

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  1. ^ "United Airlines". www.tatainfotech.com.
  2. ^ "What happened with United Airlines? A look at the situation that grounded planes, delayed US flights". August 7, 2025.
  3. ^ Tanna, Shivani; Singh, Rajesh Kumar. "United Airlines flights resume after it resolves technology glitch". Reuters.
  4. ^ Hayes, Carter P. (August 7, 2025). "Chaos in the Skies: Over 1,000 United Airlines Flights Thrown Into Turmoil by Massive Tech Meltdown".