philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Mar 22, 2016 10:01:57 GMT 1
Trying to find the right thread to talk about the GEnx-1B engine, I realised that we don't have one (I didn't check 2013 to 2015 threads, though) and, more broadly, that we have few engine threads. At first I intended to create a GE thread, but I eventually decided to create a 787 engines one. Moderators, please, change this as you like. I just learned from Flightglobal about a Boeing service bulletin, and a proposed FAA airworthiness directive, introducing a design change to the PIP 2 version of the engine. The change follows an in-flight shutdown caused by an ice build-up on the fan blades. www.flightglobal.com/news/articles/ge-maintains-genx-1b-performance-despite-new-mod-423365/The change seems to me to force a small step back from the 'improvements' that allowed the PIP 2 version enhanced fuel efficiency, yet GE claims there will be no performance impact.
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Mar 23, 2016 1:11:08 GMT 1
|
|
Baroque
in service - 2 years
Posts: 3,991
|
Post by Baroque on Mar 23, 2016 2:19:50 GMT 1
I hope this doesn't impact the A330neo schedule...
|
|
|
Post by Jkkw on Mar 23, 2016 13:32:27 GMT 1
|
|
|
Post by ca350 on Oct 4, 2018 21:20:34 GMT 1
Delta TechOps' first 787 engine overhaul:
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Jan 7, 2019 14:25:51 GMT 1
|
|
|
Post by marlibu on Jan 7, 2019 15:44:22 GMT 1
finally I learn the cause. interesting read.
|
|
|
Post by fanairbus on Jan 7, 2019 17:16:18 GMT 1
Hmm yes. 'The demands on manufacturers to get new developments into service and keep airlines happy with their incessant demands for greater efficiency, is so overwhelming, testing is conducted only to the level that is in essence, the minimum to prove reliability. This is an industry-wide problem but manifests itself in dozens of different ways. The commercial pressures, the financial bottom line, always take precedent – and even though all of the parties involved insist safety is their number one concern, it’s hard to really believe that given the potential consequences, especially if you’re as cynical over the way any corporate entity operates.'
The article then casts the recent Lion Air anti-stall crash as a same mechanism issue, although peculiar in an article headed RR and Dreamliner! = sloppy.
The quoted text also covers other pressures such as political = SpaceShuttle crash after low temps before lift-off. The financial imperatives of the 20th/21st century might one day be assessed as monstrous.
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Jan 7, 2019 17:24:19 GMT 1
finally I learn the cause. interesting read. I wonder whether the explanation in the story is widely acknowledged as true. It's not what Rolls-Royce has been saying ...
|
|
|
Post by stealthmanbob on Jan 8, 2019 17:22:05 GMT 1
A good article from Air Insight
Some up to date information on RR engine problems affecting B787s
Quote - "The Trent 1000 Issues
Since early 2016, problems emerged with the Rolls-Royce Trent 1000 series engines for the Boeing 787. While those problems have been traced to their cause, and a solution developed, it will take until 2021-2022 to fully retrofit the Trent 1000 fleet and return to normal flying conditions. In the interim, several aircraft have been grounded for inspections and part replacements, reaching a peak of nearly 50 aircraft in late summer 2018. As parts are replaced and engines returned to service, the number of grounded aircraft will be reduced, but these problems have been disruptive to airlines operating the Trent 1000 powered Boeing 787."
|
|