The biggest problem are the Rolls-Royce Trent turbofans for the Airbus A330, Boeing 777, and 787 Dreamliner as well as the GE90 for the Boeing 777 and the PW4000 for the Airbus A330.
March 23, 2026 at 6:16 AM
The biggest problem are the Rolls-Royce Trent turbofans for the Airbus A330, Boeing 777, and 787 Dreamliner as well as the GE90 for the Boeing 777 and the PW4000 for the Airbus A330.
“We hooked our autocomplete machine up to a Pratt & Whitney PW4000 but it still can’t fly! Clearly the answer is we we need more money”
Multiple sources are now reporting LLMs aren't scaling as hoped—larger datasets and more compute aren't improving AI systems as fast.
The companies, naturally, are pressing on, calling for billions more in investment. One way to read this: The hope is to make AI too big to fail.
The companies, naturally, are pressing on, calling for billions more in investment. One way to read this: The hope is to make AI too big to fail.
November 14, 2024 at 2:38 AM
“We hooked our autocomplete machine up to a Pratt & Whitney PW4000 but it still can’t fly! Clearly the answer is we we need more money”
United cancels Dulles-Dakar and Newark-Stockholm next summer due to shortage of PW4000 engines for its older 777-200s, via @crankyflier.com
United Cuts Flights As Pratt Problems Mount – Cranky Flier
crankyflier.com
November 24, 2025 at 2:17 PM
United cancels Dulles-Dakar and Newark-Stockholm next summer due to shortage of PW4000 engines for its older 777-200s, via @crankyflier.com
UA
anyone hear any credible rumors of this:
"[due to the issues] ETOPS clearance for their PW4000 powered 772s might be partially or fully pulled. That's about half the fleet - around 43 aircraft impacted. Discussion as to how low it may go..
anyone hear any credible rumors of this:
"[due to the issues] ETOPS clearance for their PW4000 powered 772s might be partially or fully pulled. That's about half the fleet - around 43 aircraft impacted. Discussion as to how low it may go..
January 12, 2026 at 10:14 PM
UA
anyone hear any credible rumors of this:
"[due to the issues] ETOPS clearance for their PW4000 powered 772s might be partially or fully pulled. That's about half the fleet - around 43 aircraft impacted. Discussion as to how low it may go..
anyone hear any credible rumors of this:
"[due to the issues] ETOPS clearance for their PW4000 powered 772s might be partially or fully pulled. That's about half the fleet - around 43 aircraft impacted. Discussion as to how low it may go..
Oh yes, the Pratt & Whitney PW4000 BBQ grill.
June 7, 2025 at 7:08 AM
Oh yes, the Pratt & Whitney PW4000 BBQ grill.
Taxing
#CTS #新千歳空港 #ANA #AllNipponAirways #全日空 #全日本空輸 #ソラマニ_ヒコーキ #FlyANA #Boeing #B777200ER #PW4000 #STARALLIANCE #skypassport_photo #Nikon #Zfc #NikonZfc
#CTS #新千歳空港 #ANA #AllNipponAirways #全日空 #全日本空輸 #ソラマニ_ヒコーキ #FlyANA #Boeing #B777200ER #PW4000 #STARALLIANCE #skypassport_photo #Nikon #Zfc #NikonZfc
February 23, 2024 at 10:18 PM
항덕이라면 JT9D냐 PW4000이냐 못알아봐서 고민하지 않아욧!
August 14, 2026 at 1:12 PM
항덕이라면 JT9D냐 PW4000이냐 못알아봐서 고민하지 않아욧!
10/
Zákazníci si mohou vybírat mezi třemi typy motorů - Pratt & Whitney PW4000, Rolls-Royce Trent 800 nebo General Electric GE90. Poslední jmenovaný typ je s tahem 513 kN nejvýkonnější z uvedených. Pro srovnání - motor CFM56 na Boeingu 737-800 má tah "jen" 117 kN.
Zákazníci si mohou vybírat mezi třemi typy motorů - Pratt & Whitney PW4000, Rolls-Royce Trent 800 nebo General Electric GE90. Poslední jmenovaný typ je s tahem 513 kN nejvýkonnější z uvedených. Pro srovnání - motor CFM56 na Boeingu 737-800 má tah "jen" 117 kN.
June 13, 2025 at 11:29 AM
10/
Zákazníci si mohou vybírat mezi třemi typy motorů - Pratt & Whitney PW4000, Rolls-Royce Trent 800 nebo General Electric GE90. Poslední jmenovaný typ je s tahem 513 kN nejvýkonnější z uvedených. Pro srovnání - motor CFM56 na Boeingu 737-800 má tah "jen" 117 kN.
Zákazníci si mohou vybírat mezi třemi typy motorů - Pratt & Whitney PW4000, Rolls-Royce Trent 800 nebo General Electric GE90. Poslední jmenovaný typ je s tahem 513 kN nejvýkonnější z uvedených. Pro srovnání - motor CFM56 na Boeingu 737-800 má tah "jen" 117 kN.
38장이니까 PW4000인가 싶다가 B747-3BF에 달린 JT9D-7R도 38장이라서 애매하죠 네... 막판보스(???) 기체라 744에 달린 PW4000이 제일 유력하긴 한데요...
August 14, 2026 at 1:02 PM
38장이니까 PW4000인가 싶다가 B747-3BF에 달린 JT9D-7R도 38장이라서 애매하죠 네... 막판보스(???) 기체라 744에 달린 PW4000이 제일 유력하긴 한데요...
33년째 품고 있는 의문:이건 JT-9D인가 PW4000인가
August 14, 2026 at 12:38 PM
33년째 품고 있는 의문:이건 JT-9D인가 PW4000인가
November 9, 2025 at 3:21 AM
2025-04-21: Delta Air Lines Airbus A330-300 (N807NW, *2004) was evacuated via emergency slides at Orlando-Intl AP(KMCO),FL, when the right engine (PW4000) emitted large flames and smoke during the pushback maneuver. No one aboard flight #DL1213 to Atlanta was injured.
edition.cnn.com/2025/04/21/t...
edition.cnn.com/2025/04/21/t...
April 21, 2025 at 6:22 PM
2025-04-21: Delta Air Lines Airbus A330-300 (N807NW, *2004) was evacuated via emergency slides at Orlando-Intl AP(KMCO),FL, when the right engine (PW4000) emitted large flames and smoke during the pushback maneuver. No one aboard flight #DL1213 to Atlanta was injured.
edition.cnn.com/2025/04/21/t...
edition.cnn.com/2025/04/21/t...
Paul Bunyan's desk fan was an old Pratt & Whitney PW4000
June 30, 2025 at 2:24 PM
Paul Bunyan's desk fan was an old Pratt & Whitney PW4000
#OTD 2018: Weaknesses in procedures, training and facilities at a P&W #nondestructivetesting shop struggling with a backlog of novel inspections of PW4000 fan blades. aerossurance.com/safety-manag... #airworthiness #aviationmaintenance #humanfactors #aviationsafety #flightsafety
February 13, 2025 at 11:08 AM
#OTD 2018: Weaknesses in procedures, training and facilities at a P&W #nondestructivetesting shop struggling with a backlog of novel inspections of PW4000 fan blades. aerossurance.com/safety-manag... #airworthiness #aviationmaintenance #humanfactors #aviationsafety #flightsafety
It's not cute. Pratt & Whitney PW4000 engines only do that when they're really stressed.
April 2, 2026 at 4:13 AM
It's not cute. Pratt & Whitney PW4000 engines only do that when they're really stressed.
2026-03-29: Delta Air Lines Airbus A330-300 (N813NW, *2006) suffered a series of engine surges with large streaks of fire on its left engine (PW4000) in the initial climb-out from runway 09L at Sao Paulo-Guarulhos Intl AP(SBGR), Brazil. Flight #DL104 to Atlanta safely returned to land 10 min later.
March 30, 2026 at 8:09 AM
2026-03-29: Delta Air Lines Airbus A330-300 (N813NW, *2006) suffered a series of engine surges with large streaks of fire on its left engine (PW4000) in the initial climb-out from runway 09L at Sao Paulo-Guarulhos Intl AP(SBGR), Brazil. Flight #DL104 to Atlanta safely returned to land 10 min later.
Pratt And Whitney PW4000 112 Series Jet Engine Parts
Discover dependable Pratt And Whitney PW4000 112 Series jet engine parts for commercial aviation requirements. Explore aviation components designed for efficient sourcing and maintenance support.
Visit Us: aviationpartssales.com/civil-aviati...
Discover dependable Pratt And Whitney PW4000 112 Series jet engine parts for commercial aviation requirements. Explore aviation components designed for efficient sourcing and maintenance support.
Visit Us: aviationpartssales.com/civil-aviati...
September 7, 2026 at 8:38 AM
Pratt And Whitney PW4000 112 Series Jet Engine Parts
Discover dependable Pratt And Whitney PW4000 112 Series jet engine parts for commercial aviation requirements. Explore aviation components designed for efficient sourcing and maintenance support.
Visit Us: aviationpartssales.com/civil-aviati...
Discover dependable Pratt And Whitney PW4000 112 Series jet engine parts for commercial aviation requirements. Explore aviation components designed for efficient sourcing and maintenance support.
Visit Us: aviationpartssales.com/civil-aviati...
As mentioned, I have an extra soft spot for SQ 747s as my 1st job out of uni was at an outfit repairing (mainly their) PW4000 engine bits. That, plus me being me means it was on brand for me to monitor Melb's weather every Sunday for 3 months just for this. Link: www.thebaseleg.com/Aviation/Mis...
September 5, 2023 at 4:15 AM
As mentioned, I have an extra soft spot for SQ 747s as my 1st job out of uni was at an outfit repairing (mainly their) PW4000 engine bits. That, plus me being me means it was on brand for me to monitor Melb's weather every Sunday for 3 months just for this. Link: www.thebaseleg.com/Aviation/Mis...
Pratt & Whitney has been around the aviation business since 1925. There are few firms in the aero engine business with a history this long. We spoke with Mr Larry Jones, Product Line VP for the PW4000 this morning. The PW4000 engine follows a long line of PW aero https://airinsight.com/?p=2065
July 27, 2025 at 2:34 PM
Pratt & Whitney has been around the aviation business since 1925. There are few firms in the aero engine business with a history this long. We spoke with Mr Larry Jones, Product Line VP for the PW4000 this morning. The PW4000 engine follows a long line of PW aero https://airinsight.com/?p=2065
남들은 카울보고 CF6이냐 PW4000이냐 구분하고 T900이냐 GP7200이냐를 구분하고 T1000이냐 GEnx냐를 구분한다는데 왜 구분 못하는 별자리점 기를 죽이고 그래욧!
August 14, 2026 at 1:16 PM
남들은 카울보고 CF6이냐 PW4000이냐 구분하고 T900이냐 GP7200이냐를 구분하고 T1000이냐 GEnx냐를 구분한다는데 왜 구분 못하는 별자리점 기를 죽이고 그래욧!
The FAA has responded to a sensor durability problem affecting Pratt & Whitney PW4000 turbofans, after P&W issued service bulletins to address the concern. The issue has been linked to tailpipe fires and in-flight shutdowns, prompting an FAA proposed order. - More on hype.aero
FAA targets PW4000 sensor flaw linked to tailpipe fires, in-flight shutdowns
An FAA proposed order comes after P&W issued service bulletins to address the concern. The Federal Aviation Administration has responded to a sensor durability problem that has caused multiple incidents of Pratt & Whitney (P&W) PW4000 turbofans suffering tailpipe fires and in-flight shutdowns.
www.flightglobal.com
May 22, 2026 at 5:24 PM
The FAA has responded to a sensor durability problem affecting Pratt & Whitney PW4000 turbofans, after P&W issued service bulletins to address the concern. The issue has been linked to tailpipe fires and in-flight shutdowns, prompting an FAA proposed order. - More on hype.aero
#OTD 2018: Weaknesses in procedures, training and facilities at a P&W #nondestructivetesting shop struggling with a backlog of novel inspections of PW4000 fan blades. aerossurance.com/safety-manag... #airworthiness #aviationmaintenance #humanfactors #aviationsafety #flightsafety
NDI Process Failures Preceded B777 PW4077 Engine FBO - Aerossurance
Weaknesses in procedures, training and facilities at a P&W Non Destructive Inspection shop struggling with a backlog of novel Thermal Acoustic Imaging inspections of PW4000 fan blades.
aerossurance.com
February 13, 2026 at 9:13 AM
#OTD 2018: Weaknesses in procedures, training and facilities at a P&W #nondestructivetesting shop struggling with a backlog of novel inspections of PW4000 fan blades. aerossurance.com/safety-manag... #airworthiness #aviationmaintenance #humanfactors #aviationsafety #flightsafety
#Thread Article on the Enquiry findings www.ainonline.com/aviation-new...
Investigators Find Metal Fatigue in UAL 777’s Failed Engine | AIN
NTSB chairman Robert Sumwalt said that a fan blade from the PW4000 that failed in-flight on February 20 showed so-called "beach" marks.
www.ainonline.com
February 12, 2025 at 11:23 PM
#Thread Article on the Enquiry findings www.ainonline.com/aviation-new...
A350は自分も好きですね〜〜IDの元ネタになってますし🫣
767ってことはCF6-80ですかね？？個人的にはMD-11の印象が強いです（日本航空はPW4000でしたが…）
767ってことはCF6-80ですかね？？個人的にはMD-11の印象が強いです（日本航空はPW4000でしたが…）
December 4, 2024 at 8:36 AM
A350は自分も好きですね〜〜IDの元ネタになってますし🫣
767ってことはCF6-80ですかね？？個人的にはMD-11の印象が強いです（日本航空はPW4000でしたが…）
767ってことはCF6-80ですかね？？個人的にはMD-11の印象が強いです（日本航空はPW4000でしたが…）