Flights Grounded:
11 Jan 22 - Some US flight on West cancelled due to NK missile launch https://www.cbsnews.com/news/north-korea-missile-launch-west-coast-flights-grounded/
4 Sep 22 - Heathrow Airport evacuated https://www.getreading.co.uk/news/uk-world-news/heathrow-airport-evacuated-police-investigate-24921560
20 Dec 22 - British Airways flights grounded en-masse as computers were down nationwide https://www.businessinsider.com/british-airways-flights-jfk-chaos-grounded-2022-12?op=1
23 Dec 22 - NYC 500 flights were canceled between the three major metro area airports, and hundreds more were delayed. https://pix11.com/news/local-news/hundreds-of-nyc-area-flights-grounded-thousands-without-power-amid-storm/
29 Dec 22 - Heathrow Airport evacuated due to Uranium found in luggage https://economictimes.indiatimes.com/news/defence/pakistans-uranium-tainted-cargo-seized-at-uks-heathrow-airport-sparks-bomb-fears/articleshow/96932899.cms
1 Jan 23 - Manila, Phillipines Flights grounded https://twitter.com/stellafanderson/status/1610252698745700353
04 Jan 23 - Southwest Suffers weather system glitch https://www.businessinsider.com/southwest-airlines-weather-system-glitch-grounds-delay-flights-passengers-2023-1?op=1
04 Jan 23 - Papua New Guinea Fuel Supplies cause flight cancellation https://twitter.com/gelsonmadu3/status/1610593981133647876
1 Jan 23 - Manila, Philippine Power outage https://zeenews.india.com/aviation/philippines-over-56000-passengers-stranded-at-manila-airport-due-to-power-outage-2556794.html
1 Jan 23 - IT Outage Causes Travel Troubles at Fort Lauderdale Airport https://www.nbcmiami.com/news/local/it-outage-causes-travel-troubles-at-fll-ahead-of-new-year/2940991/
11 Jan 23 - US FAA/NOTAM Outage https://nypost.com/2023/01/11/major-faa-system-failure-grounds-hundreds-of-us-flights/
11 Jan 23 - Canada outage https://www.independent.co.uk/news/world/americas/canada-flights-system-outage-grounded-b2260500.html
16 Jan 23 - Brisbane, Australia technical issue https://www.dailymail.co.uk/news/article-11641911/Brisbane-Airport-security-breach-Flights-grounded-passengers-queue-terminals.html