Massive UK ATC Failure Remedied, But Still Causing Flight Disruptions

Image: Airplane approaching the landing strip at London Heathrow Airport, UK. (photo via iStock/E+/stockcam)
Image: Airplane approaching the landing strip at London Heathrow Airport, UK. (photo via iStock/E+/stockcam)
Bruce Parkinson
by Bruce Parkinson
Last updated: 1:25 PM ET, Mon August 28, 2023

The British National Air Traffic Service (NATS) is now saying they have identified and fixed the technical issues that caused a network-wide failure for air traffic control systems this morning. However, the impact continues to delay thousands of passengers.

The technical problem caused significant flight disruptions across England, Scotland, Wales and Northern Ireland. Reports say more than 500 flights were cancelled.

According to The Independent, the major outage on one of the busiest days of the year – bank holiday Monday -- left traffic controllers inputting flight paths manually after their digital systems went down.

Around one million passengers had been due to fly to and from the UK on the Monday bank holiday, according to data from analytics firm Cirium – with many facing delays of up to 12 hours.

According to FlightAware, there are currently significant delays at major airports across the U.K. including:

London Heathrow: 26% of all departures, 24% of arrivals.

London Stansted: 11% of all departures, 22% of arrivals.

London Gatwick: 29% of all departures, 41% of arrivals.

London City: 30% of all departures, 38% of arrivals.

Glasgow International: 23% of all departures, 30% of arrivals.

Edinburgh: 24% of all departures, 21% of arrivals.

Manchester: 18% of all departures, 20% of arrivals.

Birmingham International: 17% of all departures, 19% of arrivals.

All travellers flying through U.K.-based airports are being told to check with their airline before heading to the airport.

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