UA328: Initial NTSB findings show metal fatigue

UA328 Boeing 777-200 (Image: NTSB/Public Domain) — Image: NTSB/Public Domain

23/02/2021 Engineering and leasing news, News < 1 minute read
Written by: Nick Harding

Initial inspections of the Pratt & Whitney PW4000-112 engine that caught fire on flight UA328 on Saturday have found that Turbine Blade No11 sheared off at the root “likely caused by metal fatigue”.

Turbine Blade 10 was also sheared mid-way along its length, probably after being hit by Blade 11.

Close up of Blade Failure on UA328 (Image: NTSB/Public Domain)

The incident hit the headlines on the weekend after the failure cause the fairing and nacelle to separate from the engine and land in a housing estate near Denver damaging property.

Debris from the engine also caused damage to the fairing on the wing root as it came off the aircraft.

Wing root fairing damage on UA328 (Image: NTSB/Public Domain)

All Pratt & Whitney powered Boeing 777s have been grounded as a precaution.

Discover more from UK Aviation News

Subscribe to get the latest posts sent to your email.

Make a one-time donation to help keep our site free for all.

Make a monthly donation

Make a yearly donation

We are completly independent and funded solely by us and you. Whether its a one time donation or a regular amount, it all goes towards the production and mangement of this website.

Choose an amount

£5.00

£15.00

£100.00

£5.00

£15.00

£100.00

£5.00

£15.00

£100.00

Or enter a custom amount

Your contribution is appreciated.

Donate Donate monthly Donate yearly

About Nick Harding 2277 Articles

Nick is the senior reporter and editor at UK Aviation News as well as working freelance elsewhere. He has his finger firmly on the pulse on Aviation, not only in the UK but worldwide. Nick has been asked to speak in a professional capacity on LBC, Heart and other broadcast networks.

NTSB release first images from Dallas airshow mid-air collision

14/11/2022 Air show news, Aviation safety news, News 2 minute read
Written by: UK Aviation News

The National Transportation Safety Board (NTSB)have released the first images from the site of the fatal mid-air collision which happened at Dallas Executive Airport at the weekend. The crash happened when a Bell P-63F King Cobra collided with a Boeing B17G Flying Fortress at a display operated by the Commemorative [read more]

The moment a P63 King Cobra crashes into a B17 at a Dallas air show

Six confirmed dead in horror Dallas airshow mid-air collision

13/11/2022 Aviation safety news, News 2 minute read
Written by: UK Aviation News

The Federal Aviation Administration (FAA) has confirmed the details of yesterday’s horror crash at Dallas Executive Airport, which saw two World War II aircraft collide in mid-air. The crash occurred yesterday afternoon and involved a Boeing B-17 Flying Fortress and a Bell P-63 Kingcobra, the latter appearing to crash into [read more]

NTSB says bolts missing from Alaska Airlines 737 Max emergency door

07/02/2024 Aviation safety news, Engineering and leasing news, News < 1 minute read
Written by: Nick Harding

An initial report by the National Transportation Safety Board (NTSB) has said that it is likely that up to 4 bolts were missing from the emergency exit door panel that detached in flight from an Alaska Airlines Boeing 737 Max 9 last month causing an explosive decompression. The 737 Max [read more]

UA328: Initial NTSB findings show metal fatigue