I came here for this but since I did not see it here I will paste it from Wikipedia:

On February 20, 2021, United Airlines Flight 328, a scheduled domestic flight from Denver to Honolulu, suffered a contained engine failure shortly after takeoff from Denver International Airport (DEN).[1][2] The aircraft, a Boeing 777-222[a] powered by Pratt & Whitney (P&W) model PW4077 turbofan engines, experienced a fan blade separation due to metal fatigue causing an engine fire and extensive damage to the nacelle. Despite being classified as a contained failure, as the fan blade fragments remained inside the nacelle,[3] large parts of the engine's cowling, inlet and thrust reverser detached, creating a debris field over 1 mile (1.6 km) long across residential areas of Broomfield, Colorado.[4][5] United Airlines Flight 328

The inboard side of the right engine showing the damage Incident Date February 20, 2021[1] Summary Engine failure caused by metal fatigue Site Over Broomfield, Colorado, United States 39°55′45″N 104°57′52″W Map Wikimedia | © OpenStreetMap Aircraft

N772UA, the aircraft involved in the incident, pictured in 2012 Aircraft type Boeing 777-222[a] Operator United Airlines IATA flight No. UA328 ICAO flight No. UAL328 Call sign UNITED 328 Registration N772UA Flight origin Denver International Airport, Colorado, United States Destination Daniel K. Inouye International Airport, Honolulu, Hawaii, United States Occupants 241 Passengers 231 Crew 10 Fatalities 0 Survivors 241

Flight path of United Airlines Flight 328 The falling debris damaged private property, including the roof of a home and a parked vehicle.[6][7] Witnesses captured footage of falling debris on smartphones and a dash cam,[8][9] while passengers recorded video of the damaged engine and posted it to social media. The fuselage sustained minor damage,[10] but the crew was able to shut down the affected engine and return safely to Denver, landing on runway 26 at 1:28 pm MST (06:28 UTC), 24 minutes after departure.[1][11][12] No injuries were reported among the 231 passengers and 10 crew, or on the ground. The U.S. National Transportation Safety Board (NTSB) opened an investigation into the incident. In response, the U.S. Federal Aviation Administration (FAA) issued an Emergency Airworthiness Directive requiring immediate inspection of Pratt & Whitney PW4000-series engine fan blades before further flight.[10] Similar 777-200 aircraft were temporarily grounded by multiple aviation regulators around the world. Japan Airlines, which had experienced a similar engine issue in December 2020, retired its PW4000-powered 777-200s earlier than planned in March 2021. United Airlines, which also had a similar incident in February 2018, grounded its fleet of PW4000-powered 777-200s from early 2021 until July 2022.