cck
Final Assembly Line stage 1
Posts: 228 
|
Post by cck on Feb 15, 2018 19:08:24 GMT 1
Can that be confirmed by someone? Inside that news link it was reported " Hong Kong Express told staff that new P&W-powered NEOs would have a half-year delay as the priority for engine replacements was aircraft in operation." I think it simply means next delivery to HK Express will be delayed by half a year instead of there will be half a year deliveries halt for PW-engined NEOs. |
|
mtrunz
delivered!
Digital Aviation/Meteo Analyst
Posts: 1,956
|
Post by mtrunz on Feb 15, 2018 19:12:27 GMT 1
Thats what I got out of this as well. Just wanted to make sure before spreading #fakenews
|
|
s543
in service - 2 years
Posts: 3,959
|
Post by s543 on Feb 15, 2018 21:24:35 GMT 1
I do believe that it is such problem that we will know soon. P&W said solution will be defined until end of this week - it is not too far away....
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Feb 16, 2018 0:31:21 GMT 1
Actually, P&W said a fix would be proposed to the regulator this week, not that the proposition would be accepted.
Anwering a question on the same topic during its February 15th press conference, Enders said that he did not know yet. This answer is sufficient to disqualify the six months assertion. I noticed that he did not sound aggressive towards P&W.
I also wish to point out that HK Express is under sanctions from the Hong-Kong regulator that prevent the company from increasing its fleet. Deferring A350 deliveries without any penalty must be exactly what they wanted.
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Feb 16, 2018 17:17:39 GMT 1
A story from Flightglobal brings some clarity to the latest PW 1100G engine problem. www.flightglobal.com/news/articles/pw-reaffirms-2018-gtf-delivery-goal-despite-part-fa-445968/The following are the main points. - Preliminary findings indicate that the root cause of the engine shutdowns is a recent durability 'improvement' made by P&W to to the aft hub knife edge seal in the high pressure compressor. Modified engines appear faulty. - That change had nothing to do with the recent redesign of the combustor liner and carbon air seal in the No. 3 bearing. - A batch of nearly 100 faulty engines was delivered by Pratt & Whitney to Airbus. 43 were operating in service when EASA issued its airworthiness directive. - Airbus and P&W have submitted a mitigation plan to the regulatory authorities. If the latter approve, Airbus expects deliveries from P&W to resume in April. - Pratt & Whitney’s planned engine deliveries for the full year remain unchanged. P&W says it is 'committed to producing nearly double its 2017 rate of 374 GTF family engines' in 2018. Flightglobal' comments : [whereas it is packed with advanced technologies], "the GTF has been bedeviled in airline operations by durability shortfalls and failures of fairly common parts, such as combustor liners and seals". |
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Feb 16, 2018 18:00:42 GMT 1
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Feb 20, 2018 18:47:51 GMT 1
|
|
|
|
Post by Jkkw on Feb 21, 2018 14:34:09 GMT 1
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Feb 21, 2018 16:07:23 GMT 1
If the above is confirmed, then the issue was 'Much ado about nothing'.
I would expect this fix, however, to be an interim solution. Whatever durability issue drove P&W to introduce a different seal, it is not going away. Expect P&W to introduce a permanent fix at a later stage.
|
|
philidor
in service - 6 years
Posts: 8,950
|
Post by philidor on Feb 22, 2018 18:42:09 GMT 1
|
|
