United Airlines Flight 328 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "United Airlines Flight 328" in English language version.

refsWebsite

Global rank English rank

48web.archive.org

1^st place

6reuters.com

49^th place

47^th place

6ntsb.gov

1,153^rd place

667^th place

3flightradar24.com

6,974^th place

6,004^th place

3worldcat.org

5^th place

3aviation-safety.net

417^th place

408^th place

3bloomberg.com

99^th place

77^th place

2broomfieldenterprise.com

low place

2washingtonpost.com

34^th place

27^th place

2cbslocal.com

680^th place

412^th place

2cnn.com

28^th place

26^th place

2flightglobal.com

223^rd place

162^nd place

2aerotime.aero

low place

8,566^th place

1usatoday.com

41^st place

34^th place

1thedenverchannel.com

low place

5,796^th place

1bbc.com

20^th place

30^th place

1faa.gov

1,009^th place

607^th place

1airfleets.net

4,103^rd place

4,019^th place

1coloradosun.com

low place

7,764^th place

1books.google.com

3^rd place

1seattletimes.com

519^th place

316^th place

1businessinsider.com

140^th place

115^th place

1skybrary.aero

low place

8,169^th place

1japantimes.co.jp

389^th place

273^rd place

1utc.com

low place

1theaircurrent.com

low place

1nymag.com

346^th place

229^th place

1ainonline.com

2,567^th place

1,570^th place

1youtube.com

9^th place

13^th place

1ibtimes.com

911^th place

628^th place

1nbcnews.com

137^th place

101^st place

1foxbusiness.com

2,709^th place

1,537^th place

1aerossurance.com

low place

1nhk.or.jp

145^th place

1,388^th place

1nytimes.com

7^th place

1prattwhitney.com

low place

1aviationtoday.com

9,924^th place

6,010^th place

1x.com

low place

1nikkei.com

211^th place

915^th place

1independent.co.uk

36^th place

33^rd place

1ctvnews.ca

768^th place

482^nd place

1bbc.co.uk

8^th place

10^th place

1msn.com

117^th place

145^th place

1wsj.com

79^th place

65^th place

1cnbc.com

220^th place

155^th place

aerossurance.com

"NDI Process Failures Preceded B777 PW4077 Engine FBO - Aerossurance". Accidents & Incidents. Aerossurance Limited. July 22, 2020. Retrieved February 26, 2021.

aerotime.aero

"Japan Airlines Boeing 777 turns back after engine failure". Aerotime. Archived from the original on March 6, 2021. Retrieved February 26, 2021.
Charpentreau, Clement (February 22, 2021). "UK bans specific Boeing 777 following engine incidents". AeroTime News. Archived from the original on June 12, 2021. Retrieved February 27, 2021.

ainonline.com

Polek, Gregory (February 23, 2021). "Investigators Find Metal Fatigue in UAL 777's Failed Engine". Aviation International News. Archived from the original on March 3, 2021. Retrieved March 6, 2021.

airfleets.net

"United Airlines N772UA (Boeing 777 - MSN 26930)". www.airfleets.net. Airfleets aviation. Archived from the original on June 12, 2021. Retrieved February 22, 2021.

aviation-safety.net

Ranter, Harro. "Incident Boeing 777-222 N772UA, 20 Feb 2021". aviation-safety.net. Aviation Safety Network. Archived from the original on June 12, 2021. Retrieved February 22, 2021.
Ranter, Harro. "Serious incident Boeing 777-222 N773UA, 13 Feb 2018". aviation-safety.net. Aviation Safety Network. Archived from the original on February 21, 2021. Retrieved February 22, 2021.
"ASN Wikibase Occurrence # 248036". Aviation Safety Network. February 20, 2021. Archived from the original on March 2, 2021. Retrieved February 22, 2021.

aviationtoday.com

Bellamy, Woodrow III (February 23, 2021). "Boeing 777s Equipped with Pratt & Whitney 4000 Engines Grounded Following UAL 328". Aviation Today. Retrieved February 26, 2021.

bbc.co.uk

"Boeing 777: Dozens grounded after Denver engine failure". BBC News. February 22, 2021. Archived from the original on February 22, 2021. Retrieved February 22, 2021.

bbc.com

"US plane scatters engine debris over Denver homes". BBC News. February 21, 2021. Archived from the original on February 20, 2021. Retrieved February 21, 2021.

bloomberg.com

Levin, Alan (February 25, 2021). "Fan Blade That Broke on United Plane in Denver Had 3,000 Flights". Bloomberg.com. Retrieved March 1, 2021.
Levin, Alan (February 25, 2021). "How Cracks in Jet Engines Elude Exams, With Deadly Results". Bloomberg.com. Archived from the original on February 26, 2021. Retrieved March 6, 2021.
Levin, Alan (February 23, 2021). "Metal Fatigue Seen as Trigger for Boeing 777 Engine Failure". Bloomberg.com. Retrieved March 1, 2021.

books.google.com

Birtles, Philip (1998). Boeing 777: Jetliner for a New Century. MBI Publishing Company. ISBN 978-0-7603-0581-2.

broomfieldenterprise.com

"Broomfield park-goers recount seeing debris fall from United Airlines plane Saturday". Boulder Daily Camera. February 20, 2021. Archived from the original on February 20, 2021. Retrieved February 21, 2021.
"Broomfield park-goers recount seeing debris fall from United Airlines plane Saturday – Broomfield Enterprise". Broomfield Enterprise. February 20, 2021. Retrieved March 4, 2021.

businessinsider.com

Zhang, Benjamin (August 3, 2016). "A Boeing 777 just crashed, but it's still one of the safest planes ever to fly". Business Insider. Archived from the original on June 8, 2020. Retrieved March 1, 2021.

cbslocal.com

denver.cbslocal.com

Chavira, Danielle (February 20, 2021). "Plane Debris Falls From Sky & Onto Broomfield Neighborhoods". CBS Denver. Retrieved February 21, 2021.
McCue, Conor (February 23, 2021). "Insurance Expert Weighs In On Damage United Airlines Flight 328: 'Objects Falling From The Sky Are Covered'". CBS Denver – News, Weather & Sports For All Of Colorado. Archived from the original on June 12, 2021. Retrieved March 1, 2021.

cnbc.com

Josephs, Leslie (May 17, 2022). "United Airlines says FAA has cleared 52 Boeing 777s to fly again after they were grounded for engine failure". CNBC. Archived from the original on September 3, 2022. Retrieved September 2, 2022.

cnn.com

Silverman, Hollie; Andone, Dakin; Williams, David (February 20, 2021). "United Airlines flight suffers engine failure, sending debris falling on neighborhoods outside Denver". CNN. Archived from the original on February 22, 2021. Retrieved February 21, 2021.
Holcombe, Madeline; Vera, Amir (February 23, 2021). "Investigators release preliminary findings on the United Airlines flight engine failure. Here's what we know". CNN. Archived from the original on February 24, 2021. Retrieved February 27, 2021.

coloradosun.com

"United Airlines plane with exploded engine drops debris over Denver area before emergency landing". The Colorado Sun. February 20, 2021. Retrieved February 21, 2021.

ctvnews.ca

French, Cameron (February 22, 2021). "Transport Canada may consider banning Boeing 777s from airspace following engine fire". CTVNews. Retrieved February 27, 2021.

faa.gov

"FAA Statement on Pratt & Whitney Engine Emergency Airworthiness Directive". Federal Aviation Administration. February 24, 2021.

flightglobal.com

Waldron, Greg (December 7, 2020). "JAL 777-200 engine loses panel, suffers blade damage after takeoff". Flight Global. Archived from the original on February 22, 2021. Retrieved February 22, 2021.
Chua, Alfred (June 13, 2022). "Jin Air returns PW4000-powered 777s to service; takes first 737 Max". Flight Global. Archived from the original on June 13, 2022. Retrieved June 13, 2022.

flightradar24.com

Petchenik, Ian (February 21, 2021). "United UA328 suffers engine failure departing Denver". FlightRadar24. Archived from the original on February 25, 2021. Retrieved February 28, 2021.
"Flight history for aircraft - N772UA". Flightradar24. Archived from the original on February 23, 2021. Retrieved February 25, 2021.
"The complete list of grounded 777s and where they are". Flightradar24. February 24, 2021. Archived from the original on June 12, 2021. Retrieved February 24, 2021.

foxbusiness.com

Manfredi, Lucas (February 24, 2021). "United Flight 382 and similar incidents involving Boeing 777 with Pratt & Whitney engines". Fox Business. Archived from the original on February 26, 2021. Retrieved March 3, 2021.

ibtimes.com

Paradis, Cullen (February 25, 2021). "Boeing 777 Engine Covers Were Engineering Focus For Years Before Failures". International Business Times. Archived from the original on February 26, 2021. Retrieved February 26, 2021.

independent.co.uk

Massie, Graeme (February 22, 2021). "United grounds 777s as FAA orders probe into Colorado engine failure". The Independent. Archived from the original on February 28, 2021. Retrieved February 27, 2021.

japantimes.co.jp

"Japan orders airlines to ground Boeing 777 jets after U.S. incident". The Japan Times. February 22, 2021. Retrieved March 1, 2021.

msn.com

Griff, Zach (June 28, 2021). "United's upgrading 8 Hawaii routes with its nicest wide-body jets". www.msn.com. Archived from the original on July 10, 2021. Retrieved July 10, 2021.

nbcnews.com

"Engine that endangered United flight has troubled history". NBC News. Retrieved February 23, 2021.

nhk.or.jp

www3.nhk.or.jp

"JAL機那覇空港に緊急着陸機体左側のエンジン破損けが人なし" [JAL aircraft Emergency landing at Naha Airport Engine damage on the left side of the aircraft No injuries] (in Japanese). NHK. Archived from the original on December 9, 2020. Retrieved December 4, 2020. NHKが那覇空港に設置したカメラでは、滑走路上で停止したあとけん引されている日本航空のボーイング777型機の機体は、左側のエンジン内部の羽根の一部がなくなり、カバーも破損しているのが確認できます。.... NHKが那覇空港に設置したカメラから撮影された映像には機体左側の第1エンジンのブレード＝羽根が破損して穴が空いているように見えるほか、外側のカバーが外れてめくりあがっているように見えます。 [According to the camera installed by NHK at Naha Airport, the Boeing 777 aircraft of Japan Airlines, which is being towed after stopping on the runway, has some of the blades inside the engine on the left side missing and the cover is also damaged.... In the image taken from the camera installed by NHK at Naha Airport, it seems that the blade of the first engine on the left side of the aircraft is damaged and there is a hole, and the outer cover is peeled off and turned up.]

nikkei.com

asia.nikkei.com

"Japan grounds 32 JAL and ANA jets after Boeing engine fire". Nikkei. February 22, 2021. Archived from the original on February 22, 2021. Retrieved February 21, 2021.

ntsb.gov

"Investigative Update: United Airlines Flight 328 Boeing 777 Engine Incident". www.ntsb.gov. National Transportation Safety Board. Archived from the original on April 7, 2021. Retrieved February 22, 2021.
"Aircraft Accident Investigative Update" (PDF). National Transportation Safety Board. March 5, 2021. Archived (PDF) from the original on March 10, 2021. Retrieved March 5, 2021.
"NTSB Issues Investigative Update for United Airlines Flight 328 Engine Failure Event". www.ntsb.gov. National Transportation Safety Board. March 5, 2021. Archived from the original on March 5, 2021. Retrieved March 5, 2021.

data.ntsb.gov

English, William. "Aviation Incident Final Report" (PDF). ntsb.gov. National Transportation Safety Board. DCA18IA092. Archived from the original on February 21, 2021. Retrieved March 2, 2021.
Hookey, Gordon J.; et al. (October 29, 2018). "Powerplants Group Chairman's Factual Report" (PDF). ntsb.gov. National Transportation Safety Board. DCA18IA092. Retrieved February 27, 2021.
"Aviation Investigation Final Report". ntsb.gov. National Transportation Safety Board. September 7, 2023. DCA21FA085. Archived from the original on September 8, 2023. Retrieved September 8, 2023.

nymag.com

Wise, Jeff (February 20, 2021). "Ancient Boeing 777 Strews Debris Over Colorado". Intelligencer. Archived from the original on February 28, 2021. Retrieved February 27, 2021.

nytimes.com

Chokshi, Niraj; Dooley, Ben (February 26, 2021). "Boeing Calls for Global Grounding of 777s Equipped With One Engine Model". The New York Times. Archived from the original on February 22, 2021. Retrieved February 22, 2021.

prattwhitney.com

"PW4000-94 Engine". Pratt & Whitney. Retrieved April 16, 2021.

reuters.com

Shepardson, David (February 25, 2021). "United 777 plane flew fewer than half the flights allowed between checks: sourcretres". Reuters. Archived from the original on February 27, 2021. Retrieved March 1, 2021.
"Damage to fan blade in United Boeing 777 engine consistent with metal fatigue -NTSB". Reuters. Reuters Staff. February 23, 2021. Archived from the original on February 23, 2021. Retrieved February 23, 2021.
Frost, Jamie; Freed, David; Shepardson, Laurence (February 23, 2021). "Boeing engine blowouts investigated as older 777s are suspended". Reuters. Archived from the original on February 23, 2021. Retrieved February 23, 2021.
"Japan Airlines to retire 777 planes with Pratt & Whitney engines after United incident". Reuters. April 6, 2021. Archived from the original on May 1, 2021. Retrieved April 29, 2021.
"United Airlines plans to resume operations of grounded 777 planes". Reuters. April 20, 2021. Archived from the original on April 29, 2021. Retrieved April 29, 2021.
"U.S. FAA to require strengthening key part on Boeing 777 engine". Reuters. May 12, 2021. Archived from the original on July 10, 2021. Retrieved July 10, 2021.

seattletimes.com

Gates, D. (February 22, 2021). "Older Boeing 777 PLANES grounded after engine BLAST rains debris over Colorado homes". The Seattle Times. Retrieved March 2, 2021.

skybrary.aero

"N772UA Final Report" (PDF). skybrary.aero. Archived (PDF) from the original on November 16, 2024. Retrieved September 5, 2024.

theaircurrent.com

Ostrower, Jon (February 26, 2021). "Fresh 737 Max scars spur quick FAA moves on P&W 777s". The Air Current. Archived from the original on February 26, 2021. Retrieved February 26, 2021.

thedenverchannel.com

"Debris from United Airlines Boeing 777 falls on Broomfield neighborhoods; flight lands safely at DIA". KMGH. February 20, 2021. Retrieved February 21, 2021.

usatoday.com

Gilbertson, Dawn (February 22, 2021). "United Airlines engine failure on Boeing 777 flight from Colorado: What travelers need to know". USA TODAY. Archived from the original on February 25, 2021. Retrieved February 25, 2021.

utc.com

pw.utc.com

Pratt & Whitney. "PW4000-112". Archived from the original on July 19, 2019. Retrieved July 20, 2019.

washingtonpost.com

Knowles, Hannah (February 21, 2021). "United flight's engine failure rained debris at least a mile wide near Denver, officials say". The Washington Post. ISSN 0190-8286. Archived from the original on February 21, 2021. Retrieved February 21, 2021.
Knowles, Hannah (February 21, 2021). "United flight rained debris a mile wide near Denver after engine failure, officials say". The Washington Post. ISSN 0190-8286. Archived from the original on February 21, 2021. Retrieved February 21, 2021.

web.archive.org

Petchenik, Ian (February 21, 2021). "United UA328 suffers engine failure departing Denver". FlightRadar24. Archived from the original on February 25, 2021. Retrieved February 28, 2021.
Gilbertson, Dawn (February 22, 2021). "United Airlines engine failure on Boeing 777 flight from Colorado: What travelers need to know". USA TODAY. Archived from the original on February 25, 2021. Retrieved February 25, 2021.
"Investigative Update: United Airlines Flight 328 Boeing 777 Engine Incident". www.ntsb.gov. National Transportation Safety Board. Archived from the original on April 7, 2021. Retrieved February 22, 2021.
"Broomfield park-goers recount seeing debris fall from United Airlines plane Saturday". Boulder Daily Camera. February 20, 2021. Archived from the original on February 20, 2021. Retrieved February 21, 2021.
Knowles, Hannah (February 21, 2021). "United flight's engine failure rained debris at least a mile wide near Denver, officials say". The Washington Post. ISSN 0190-8286. Archived from the original on February 21, 2021. Retrieved February 21, 2021.
"US plane scatters engine debris over Denver homes". BBC News. February 21, 2021. Archived from the original on February 20, 2021. Retrieved February 21, 2021.
Silverman, Hollie; Andone, Dakin; Williams, David (February 20, 2021). "United Airlines flight suffers engine failure, sending debris falling on neighborhoods outside Denver". CNN. Archived from the original on February 22, 2021. Retrieved February 21, 2021.
McCue, Conor (February 23, 2021). "Insurance Expert Weighs In On Damage United Airlines Flight 328: 'Objects Falling From The Sky Are Covered'". CBS Denver – News, Weather & Sports For All Of Colorado. Archived from the original on June 12, 2021. Retrieved March 1, 2021.
"United Airlines N772UA (Boeing 777 - MSN 26930)". www.airfleets.net. Airfleets aviation. Archived from the original on June 12, 2021. Retrieved February 22, 2021.
Ranter, Harro. "Incident Boeing 777-222 N772UA, 20 Feb 2021". aviation-safety.net. Aviation Safety Network. Archived from the original on June 12, 2021. Retrieved February 22, 2021.
English, William. "Aviation Incident Final Report" (PDF). ntsb.gov. National Transportation Safety Board. DCA18IA092. Archived from the original on February 21, 2021. Retrieved March 2, 2021.
Zhang, Benjamin (August 3, 2016). "A Boeing 777 just crashed, but it's still one of the safest planes ever to fly". Business Insider. Archived from the original on June 8, 2020. Retrieved March 1, 2021.
"N772UA Final Report" (PDF). skybrary.aero. Archived (PDF) from the original on November 16, 2024. Retrieved September 5, 2024.
Pratt & Whitney. "PW4000-112". Archived from the original on July 19, 2019. Retrieved July 20, 2019.
Shepardson, David (February 25, 2021). "United 777 plane flew fewer than half the flights allowed between checks: sourcretres". Reuters. Archived from the original on February 27, 2021. Retrieved March 1, 2021.
"Aircraft Accident Investigative Update" (PDF). National Transportation Safety Board. March 5, 2021. Archived (PDF) from the original on March 10, 2021. Retrieved March 5, 2021.
"Flight history for aircraft - N772UA". Flightradar24. Archived from the original on February 23, 2021. Retrieved February 25, 2021.
Ostrower, Jon (February 26, 2021). "Fresh 737 Max scars spur quick FAA moves on P&W 777s". The Air Current. Archived from the original on February 26, 2021. Retrieved February 26, 2021.
Wise, Jeff (February 20, 2021). "Ancient Boeing 777 Strews Debris Over Colorado". Intelligencer. Archived from the original on February 28, 2021. Retrieved February 27, 2021.
Knowles, Hannah (February 21, 2021). "United flight rained debris a mile wide near Denver after engine failure, officials say". The Washington Post. ISSN 0190-8286. Archived from the original on February 21, 2021. Retrieved February 21, 2021.
Holcombe, Madeline; Vera, Amir (February 23, 2021). "Investigators release preliminary findings on the United Airlines flight engine failure. Here's what we know". CNN. Archived from the original on February 24, 2021. Retrieved February 27, 2021.
Levin, Alan (February 25, 2021). "How Cracks in Jet Engines Elude Exams, With Deadly Results". Bloomberg.com. Archived from the original on February 26, 2021. Retrieved March 6, 2021.
"Damage to fan blade in United Boeing 777 engine consistent with metal fatigue -NTSB". Reuters. Reuters Staff. February 23, 2021. Archived from the original on February 23, 2021. Retrieved February 23, 2021.
Polek, Gregory (February 23, 2021). "Investigators Find Metal Fatigue in UAL 777's Failed Engine". Aviation International News. Archived from the original on March 3, 2021. Retrieved March 6, 2021.
NTSBgov (February 22, 2021). NTSB Media Briefing on the investigation into United 328 engine incident. YouTube. National Transportation Safety Board. Archived from the original on February 8, 2023. Retrieved March 6, 2021.
Ranter, Harro. "Serious incident Boeing 777-222 N773UA, 13 Feb 2018". aviation-safety.net. Aviation Safety Network. Archived from the original on February 21, 2021. Retrieved February 22, 2021.
Paradis, Cullen (February 25, 2021). "Boeing 777 Engine Covers Were Engineering Focus For Years Before Failures". International Business Times. Archived from the original on February 26, 2021. Retrieved February 26, 2021.
Manfredi, Lucas (February 24, 2021). "United Flight 382 and similar incidents involving Boeing 777 with Pratt & Whitney engines". Fox Business. Archived from the original on February 26, 2021. Retrieved March 3, 2021.
Waldron, Greg (December 7, 2020). "JAL 777-200 engine loses panel, suffers blade damage after takeoff". Flight Global. Archived from the original on February 22, 2021. Retrieved February 22, 2021.
"JAL機那覇空港に緊急着陸機体左側のエンジン破損けが人なし" [JAL aircraft Emergency landing at Naha Airport Engine damage on the left side of the aircraft No injuries] (in Japanese). NHK. Archived from the original on December 9, 2020. Retrieved December 4, 2020. NHKが那覇空港に設置したカメラでは、滑走路上で停止したあとけん引されている日本航空のボーイング777型機の機体は、左側のエンジン内部の羽根の一部がなくなり、カバーも破損しているのが確認できます。.... NHKが那覇空港に設置したカメラから撮影された映像には機体左側の第1エンジンのブレード＝羽根が破損して穴が空いているように見えるほか、外側のカバーが外れてめくりあがっているように見えます。 [According to the camera installed by NHK at Naha Airport, the Boeing 777 aircraft of Japan Airlines, which is being towed after stopping on the runway, has some of the blades inside the engine on the left side missing and the cover is also damaged.... In the image taken from the camera installed by NHK at Naha Airport, it seems that the blade of the first engine on the left side of the aircraft is damaged and there is a hole, and the outer cover is peeled off and turned up.]
"Japan Airlines Boeing 777 turns back after engine failure". Aerotime. Archived from the original on March 6, 2021. Retrieved February 26, 2021.
Chokshi, Niraj; Dooley, Ben (February 26, 2021). "Boeing Calls for Global Grounding of 777s Equipped With One Engine Model". The New York Times. Archived from the original on February 22, 2021. Retrieved February 22, 2021.
Frost, Jamie; Freed, David; Shepardson, Laurence (February 23, 2021). "Boeing engine blowouts investigated as older 777s are suspended". Reuters. Archived from the original on February 23, 2021. Retrieved February 23, 2021.
"ASN Wikibase Occurrence # 248036". Aviation Safety Network. February 20, 2021. Archived from the original on March 2, 2021. Retrieved February 22, 2021.
"NTSB Issues Investigative Update for United Airlines Flight 328 Engine Failure Event". www.ntsb.gov. National Transportation Safety Board. March 5, 2021. Archived from the original on March 5, 2021. Retrieved March 5, 2021.
"Aviation Investigation Final Report". ntsb.gov. National Transportation Safety Board. September 7, 2023. DCA21FA085. Archived from the original on September 8, 2023. Retrieved September 8, 2023.
"Japan grounds 32 JAL and ANA jets after Boeing engine fire". Nikkei. February 22, 2021. Archived from the original on February 22, 2021. Retrieved February 21, 2021.
Massie, Graeme (February 22, 2021). "United grounds 777s as FAA orders probe into Colorado engine failure". The Independent. Archived from the original on February 28, 2021. Retrieved February 27, 2021.
Charpentreau, Clement (February 22, 2021). "UK bans specific Boeing 777 following engine incidents". AeroTime News. Archived from the original on June 12, 2021. Retrieved February 27, 2021.
"Boeing 777: Dozens grounded after Denver engine failure". BBC News. February 22, 2021. Archived from the original on February 22, 2021. Retrieved February 22, 2021.
"Japan Airlines to retire 777 planes with Pratt & Whitney engines after United incident". Reuters. April 6, 2021. Archived from the original on May 1, 2021. Retrieved April 29, 2021.
"United Airlines plans to resume operations of grounded 777 planes". Reuters. April 20, 2021. Archived from the original on April 29, 2021. Retrieved April 29, 2021.
"U.S. FAA to require strengthening key part on Boeing 777 engine". Reuters. May 12, 2021. Archived from the original on July 10, 2021. Retrieved July 10, 2021.
Griff, Zach (June 28, 2021). "United's upgrading 8 Hawaii routes with its nicest wide-body jets". www.msn.com. Archived from the original on July 10, 2021. Retrieved July 10, 2021.
Tangel, Andrew (August 30, 2021). "United Jets With Engines in Denver Incident May Not Fly Until Next Year". The Wall Street Journal. ISSN 0099-9660. Archived from the original on September 2, 2021. Retrieved September 2, 2021.
Josephs, Leslie (May 17, 2022). "United Airlines says FAA has cleared 52 Boeing 777s to fly again after they were grounded for engine failure". CNBC. Archived from the original on September 3, 2022. Retrieved September 2, 2022.
Chua, Alfred (June 13, 2022). "Jin Air returns PW4000-powered 777s to service; takes first 737 Max". Flight Global. Archived from the original on June 13, 2022. Retrieved June 13, 2022.
"The complete list of grounded 777s and where they are". Flightradar24. February 24, 2021. Archived from the original on June 12, 2021. Retrieved February 24, 2021.

worldcat.org

search.worldcat.org

Knowles, Hannah (February 21, 2021). "United flight's engine failure rained debris at least a mile wide near Denver, officials say". The Washington Post. ISSN 0190-8286. Archived from the original on February 21, 2021. Retrieved February 21, 2021.
Knowles, Hannah (February 21, 2021). "United flight rained debris a mile wide near Denver after engine failure, officials say". The Washington Post. ISSN 0190-8286. Archived from the original on February 21, 2021. Retrieved February 21, 2021.
Tangel, Andrew (August 30, 2021). "United Jets With Engines in Denver Incident May Not Fly Until Next Year". The Wall Street Journal. ISSN 0099-9660. Archived from the original on September 2, 2021. Retrieved September 2, 2021.

wsj.com

Tangel, Andrew (August 30, 2021). "United Jets With Engines in Denver Incident May Not Fly Until Next Year". The Wall Street Journal. ISSN 0099-9660. Archived from the original on September 2, 2021. Retrieved September 2, 2021.

x.com

@BroomfieldPD (February 20, 2021). "Getting reports that a plane flying over @broomfield had engine trouble and dropped debris in several neighborhoods around 1:08 pm. No injuries reported at this time. Plane did not land in Broomfield. Media staging area TBD" (Tweet) – via Twitter.

youtube.com

NTSBgov (February 22, 2021). NTSB Media Briefing on the investigation into United 328 engine incident. YouTube. National Transportation Safety Board. Archived from the original on February 8, 2023. Retrieved March 6, 2021.