Search found 17360 matches

by zeke
Sat Jun 04, 2022 5:35 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

Having worked with 3D microscope on composite material, you can indeed see the layer when it is cut and rightly polished, but the composite should have a global breaking/tearing behaviour. If the different zones in the composite can dissociate by layer, this is not composite anymore, or it implies ...

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by zeke
Fri Jun 03, 2022 11:42 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

The ECF mesh is embedded into composite material resin, which is then bonded and cured onto the surface of the structural CFRP. Then covered with a multi-layer paint protective system. Using any buzz word you know into a sentence does not add weight to what you are claiming. This sentence again is ...

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by zeke
Fri Jun 03, 2022 11:02 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

Zeke, it says exactly what it says. The ECF loses adhesion with the embedding resin, which flakes away and leaves the ECF exposed. This is clearly evident in the Qatar photos as well. You are arguing even against Airbus here, and I don't understand why, but won't argue any further because it's beco...

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by zeke
Fri Jun 03, 2022 8:05 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

From the Airbus response document: 4.3 During the aircraft manufacturing process, the ECF is embedded into a surfacing film which is then co-cured on to the CFRP. This means that the ECF layer forms an integral part of the airframe 21.4.1 (3) The memorandum found that the initial “crazing cracks” p...

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by zeke
Fri Jun 03, 2022 2:42 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

As I said, the mesh has a layer of composite resin above it. This is beyond dispute. Could you please provide the direct quote and reference to where you have said Airbus claimed there was a layer of composite above the mesh ? As far as I am aware from the documents I have seen there is no layer of...

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by zeke
Thu Jun 02, 2022 12:32 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

I provided the FAA documentation and quoted what it said. Are you saying the FAA is incorrect. What you are talking about is things like applying speed tape over a lightning strike location. It does nothing to repair the issue, it just prevents it from getting worse until a repair can be made. The ...

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by zeke
Wed Jun 01, 2022 7:27 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

I'm sorry - but since you seem to be in a particularly pedantic mood in this thread then I have to call you out again. I mentioned Airbus In-Service Query documentation a few comments back... the Repair Design Approval Sheet I'm looking at *right now* has a check box for repair category A/B/C... an...

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by zeke
Wed Jun 01, 2022 3:11 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

As I said, the mesh has a layer of composite resin above it. This is beyond dispute. There is no layer of resin placed above the mesh, it comes as a premanufactured roll with the mesh and matrix as one material. This is not a dry layup, the pre-preg already contains the matrix. Very little in aircr...

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by zeke
Wed Jun 01, 2022 10:17 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

Avatar2go wrote:
there is a layer of composite resin above the mesh layer, and below the paint protection system.


Resin is not placed above the mesh, the material is a pre-preg, the mesh comes in rolls embedded in a partially cured polymer matrix.

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by zeke
Wed Jun 01, 2022 8:40 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

From the Judgement Hearing date: 26 April 2022 (this in the public domain available from the Technology and Construction Court Claim No: HT-2021-000495. The airworthiness aspects were addressed, he was somewhat surprised at the lack of discussion with the QCAA to resolve the grounding issue. I dont ...

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by zeke
Wed Jun 01, 2022 6:58 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

I came across these two documents that state otherwise: https://www.faa.gov/aircraft/air_cert/design_approvals/transport/aging_aircraft/media/RepairAssessPressFuselFinalRule.pdf https://www.faa.gov/documentLibrary/media/Order/8300.13.pdf Under repair classification, it states that Category C is &qu...

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by zeke
Tue May 31, 2022 8:47 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

That’s semantics. There is stuff covering the mesh including paint. If you can see mesh that means that stuff is gone. If you look at a A350 fuselage you should not be able to see the mesh. It is not semantics, it is getting the detail correct. Your post gave the impression that the mesh was contai...

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by zeke
Tue May 31, 2022 4:21 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

sxf24 wrote:
Despite its reputation here, QR’s performance as a lessee is seen as impeccable within the industry.


They should have no difficulties getting A321neo then if they are such a model client.

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by zeke
Tue May 31, 2022 4:19 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

The mesh under normal conditions is covered by a composite layer and paint. The A350 uses HexPly M59XF expanded copper foil prepreg, that is on the outside of the structural components, there is no covering composite layer. The structural component is inside that, which is the reason when the mesh ...

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by zeke
Tue May 31, 2022 3:46 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

JerseyFlyer wrote:
I don't think anyone would question that Airbus should pay for the amount of patching that exceeds expectations - unless the contract states otherwise.


Will the expectation run both ways ? Do you address it when it is 5-10 mm or do you do nothing until it gets so bad you have to park the jet ?

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by zeke
Tue May 31, 2022 3:15 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

What I don't understand is how long QTR must have left the issues happen. Surely what was shown on the pictures/videos didn't happen on one flight to the next? And if you always read about how important their image and appearance is for QTR with every little thing almost being micro-managed from th...

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by zeke
Tue May 31, 2022 3:05 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

It goes without saying that the paint must come off the aircraft to expose the composite skin and the underlying mesh. So the paint did come off, however you wish to characterize that. Also visible in the Qatar videos. So that is established fact. This is not true, have a look at lightning strikes....

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by zeke
Tue May 31, 2022 6:17 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

I don't think anyone here is trying to smear Airbus Of course there is, that is why Airbus stated in public it has to defend its reputation. It's difficult because there is a dearth of official information, and thus different reports tend to fill in the blanks in different ways. The court proceedin...

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by zeke
Tue May 31, 2022 6:00 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

I’m drawing a conclusion from various articles and private conversations. What has been at issue is the root cause and a permanent solution to the paint peeling. I know other airlines have applied temporary patches and we haven’t seen photo evidence otherwise. It’s important to understand that an u...

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by zeke
Sun May 29, 2022 9:45 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

I think a normal and reasonable person, without the ability or desire to demonstrate technical knowledge, could believe that the defects, like exposure of lightening protection, require the absence of paint. A normal reasonable person would not claim an article contained the term "paint peel&q...

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by zeke
Sun May 29, 2022 9:32 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

The word "paint" appears 70 times in this response, for example in the following quote: There is a number of references to the different conditions QR have claimed (paint cracking, paint cracking around window frames, rivet rash), and they have specifically stated that the AY issues is no...

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by zeke
Sun May 29, 2022 8:41 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

I think Zeke is saying that QR is claiming only that the exposed mesh is a danger to the aircraft. They have not mentioned the paint as such in the legal documents. We all know that peeling paint is what causes the mesh to be exposed but QR have not specifically mentioned paint issues in their lega...

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by zeke
Sun May 29, 2022 8:37 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

Not a single quote, you say? I said not a single quote from QR regarding to paint peel, the quote is for example “These defects are not superficial and one of the defects causes the aircraft’s lightning protection system to be exposed and damaged,” does not include paint peel. QR in their court fil...

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by zeke
Sun May 29, 2022 10:13 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

QR has not said they have paint peel Say what? https://www.avweb.com/aviation-news/airbus-cancels-6-billion-a350-qatar-contract-over-peeling-paint-lawsuit/ Qatar went public with images of blistering and peeling paint Avweb is not QR. There is not a single quote in that article from QR about paint ...

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by zeke
Sat May 28, 2022 9:02 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

Five airlines total have also reported the paint peeling issue, but none other than Qatar has regarded it as an airworthiness issue. Can we please keep statements like this out of this thread. QR have not had an issue with paint peel, it was not one of the 9 mechanisms which they claimed about in t...

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by zeke
Sat May 28, 2022 9:47 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

3rdGen wrote:
Does anyone have a link to a court website that details the case? Which court is hearing the case?


It is in the Technology and Construction Court, Case HT-2021-000495 which is a TCC - Part 7 Claim -Technology

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by zeke
Sat May 28, 2022 9:38 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 109140

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

Pelly wrote:
The judge issued an interim ruling that gives a bit more color to his opinion so far, maybe one of the users can post it here. The interim ruling in my opinion gives motivation for both sides to settle.


The order has not been published in the public domain as of today.

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by zeke
Fri May 27, 2022 2:33 pm
Forum: Civil Aviation
Topic: KLM halted ticket sales at Amsterdam Airport (27 May)
Replies: 81
Views: 19149

Re: KLM halting ticket sales at Amsterdam Airport between now and Monday

I feel sorry for the staff that are on the front face here that will endure the frustrations of passengers waiting for hours. Totally preventable and predictable situation, I hope passengers are smart enough to point the finger at the correct party responsible for the mess.

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by zeke
Thu May 26, 2022 3:54 pm
Forum: Technical/Operations
Topic: Pokhara VNPK procedures?
Replies: 11
Views: 1580

Re: Pokhara VNPK procedures?

77west wrote:
It is possible the airlines have their own proprietary RNP procedures that are not public. You may be able to approximate it by looking at Flightaware or something like that.


Doubt that, the runways marking and lights are not to IFR standards.

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by zeke
Thu May 26, 2022 3:53 pm
Forum: Technical/Operations
Topic: Pokhara VNPK procedures?
Replies: 11
Views: 1580

Re: Pokhara VNPK procedures?

A bit of a shot in the dark, but wondering if anyone can link me to information showing departure procedures for VNPK (current airport, not the new one coming online soon), 04/22. Taking off (this is an X-Plane question, I should add!) in a single/turbo prop (so with relatively limited climb power)...

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by zeke
Thu May 26, 2022 10:01 am
Forum: Civil Aviation
Topic: California Mandatory Rest for Flight Crews
Replies: 147
Views: 23019

Re: California Mandatory Rest for Flight Crews

rbavfan wrote:
How does raise the prices to cover an extra pilot amount to "crew being expected to fund passenger flights", Passengers would be making up the cost of the flight, not the crew.


Crew don’t care, as long as they get the meal and rest entitlement as any other employees is all that matters .

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by zeke
Thu May 26, 2022 8:42 am
Forum: Civil Aviation
Topic: California Mandatory Rest for Flight Crews
Replies: 147
Views: 23019

Re: California Mandatory Rest for Flight Crews

rbavfan wrote:

Sure just raise prices to cover an extra pilot. The most expensive crew members. Oh yeah and there is already a pilot shortage!


If you have a problem with the law, address the issue with the lawmakers. I am sick and tired of crew being expected to fund passengers flights.

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by zeke
Tue May 24, 2022 10:37 am
Forum: Technical/Operations
Topic: STARs with INS
Replies: 19
Views: 2168

Re: STARs with INS

In the US, Q Routes only require RNAV 1, which can be met by DME/DME/INS systems or GPS, but T routes additionally require GPS (to an RNAV 1 or better standard)or GPS/WAAS (which meets at least an RNAV 0.3 standard BTW). This is incorrect, T and Q airways are RNAV 2 except for those that are RNAV 1...

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by zeke
Mon May 23, 2022 10:24 pm
Forum: Technical/Operations
Topic: STARs with INS
Replies: 19
Views: 2168

Re: STARs with INS

In the US, Q Routes only require RNAV 1, which can be met by DME/DME/INS systems or GPS, but T routes additionally require GPS (to an RNAV 1 or better standard)or GPS/WAAS (which meets at least an RNAV 0.3 standard BTW). This is incorrect, T and Q airways are RNAV 2 except for those that are RNAV 1...

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by zeke
Sun May 22, 2022 7:29 pm
Forum: Technical/Operations
Topic: Help me identify this Huey!
Replies: 4
Views: 1711

Re: Help me identify this Huey!

Lpbri wrote:
I thought all civilian versions had the Twinpack setup


What reply 2 says is there is an STC to remove the twinpac and replace it with a single engine offering more payload.

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by zeke
Sun May 22, 2022 6:47 pm
Forum: Technical/Operations
Topic: STARs with INS
Replies: 19
Views: 2168

Re: STARs with INS

Understand all that which why I posted “at higher precision RNP procedures”. Maybe an FAA/ICAO terminology difference. There are no “INS” STARs is the point. I do manage OpsSpecs for 3 international bizjets. All RNAV STARS in the US are RNAV 1, there is no requirement for GNSS at all to fly these o...

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by zeke
Sun May 22, 2022 6:27 pm
Forum: Military Aviation & Space Flight
Topic: Blue angels
Replies: 18
Views: 3224

Re: Blue angels

ArtemDeggy wrote:
Hey) Is it possible to fly in the Blue Angels aerobatic team and work for airlines at the same time?


Nope

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by zeke
Sun May 22, 2022 10:37 am
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

I don't think it was a guess. Ops specs and regulations vary from 200 - 220 lbs per pax. Completely accurate, or not, that's how the flight would be planned. In the US FAA new weight and balance standards calculates passengers weights with carryon luggage at 190lbs summer and 195lbs in the winter. ...

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by zeke
Sun May 22, 2022 10:22 am
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

The primary question was MTOW restrictions for the A359 at JNB. Any idea what that might be? The MTOW is a flight manual limit for that tail, it does not change from airport to airport, the question makes no sense. If the DL A350s are certified for 275 tonnes or 283 tonnes, it remains at the number...

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by zeke
Sat May 21, 2022 1:46 pm
Forum: Technical/Operations
Topic: STARs with INS
Replies: 19
Views: 2168

Re: STARs with INS

It’s properly termed RNAV, or at higher precision RNP procedures. INS in inertial nabigation system which was the primary RNAV in jets. Now, it’s an IRS, inertial reference system and acts as a sensor for the FMS. Not really, RNAV is area navigation, there is no requirement for onboard performance ...

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by zeke
Sat May 21, 2022 8:19 am
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

ElroyJetson wrote:
tire speed issues


There is no tyre speed issue with the A359 in JNB, at the highest weights on an ISA day rotation would be around 162 kts, which is a ground speed of 176 kts, well below the standard tyre speed limits (204 kts ground speed).

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by zeke
Sat May 21, 2022 7:53 am
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

ZEDZAG wrote:
That is like 4 hours of useless flying, and translates to, like 15t of payload?


4:29 and 20.2 tonnes of trip fuel for the SYD-PER diversion.

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by zeke
Sat May 21, 2022 7:51 am
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

JohanTally wrote:
Does this take into account luggage because 300 passengers would have a minimum of 8k-15k pounds of checked luggage.


The numbers were based upon 306 passengers @ 207.5 lb each ( a little bit higher than the FAA standard passenger and baggage weight), 28,800 kg.

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by zeke
Sat May 21, 2022 7:33 am
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

MrHMSH wrote:
Which MTOW did you use?


275,000 kg

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by zeke
Fri May 20, 2022 2:02 pm
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

It has been quite painstakingly rebutted with some very informed and detailed discussion that DL's A350s struggle on LAX-SYD. It's almost bordering on misinformation now. PR's A350s (278T) operated longer flights (MNL-JFK/YYZ) than LAX-SYD with very similar seat counts to DL. The flights were 16+ho...

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by zeke
Fri May 20, 2022 11:50 am
Forum: Civil Aviation
Topic: Jetstar 787 badly damaged by lightning
Replies: 26
Views: 7719

Re: Jetstar 787 badly damaged by lightning

vhtje wrote:
Is JQ maintenance completely separate to QF? Will the repair be done by QF? Or is all major maintenance at the QF Group outsourced these days, so that the distinction is immaterial?


I believe the QF was famous for saying words to the effect that new aircraft don’t need maintenance

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by zeke
Fri May 20, 2022 11:46 am
Forum: Technical/Operations
Topic: STARs with INS
Replies: 19
Views: 2168

Re: STARs with INS

If I recall correctly, aircraft equipped with INS could not fly published STARs because the INS was not RNAV compliant (excluding more modern INS units like the Litton LTN-92), so how were arrivals into airports flown with the non-RNAV compliant INS? l Aircraft equipped with an INS/IRS could fly RN...

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by zeke
Thu May 19, 2022 9:59 pm
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

Remember a few years ago when some here said the A350 didn't have the legs to fly LAX-SYD for DL? Think it was UA. I don't think anyone questions whether the 359 has the legs for 13 to 14 hour flights I think people's apprehension was whether would it carry a full pax cabin and cargo hold. Looking ...

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by zeke
Thu May 19, 2022 12:32 pm
Forum: Civil Aviation
Topic: Jetstar 787 badly damaged by lightning
Replies: 26
Views: 7719

Re: Jetstar 787 badly damaged by lightning

pugman211 wrote:

The question becomes why did the lightning not follow the path to the static discharge wicks? Surely that is their function.


This is perfectly normal, you see lightning entry and exit points all over even on metal aircraft

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by zeke
Thu May 19, 2022 12:16 pm
Forum: Civil Aviation
Topic: A350-900 now has a 283t MTOW
Replies: 126
Views: 27022

Re: A350-900 now has a 283t MTOW

Interesting, what are the chances of either a thrust bump, or a less likely higher speed rated tire? What makes you assume it's less likely? ...that's (specialized tire) exactly what was done for DL's 77Ls prior to JNB service, they didn't event take the (already available) thrust bump. The A350 ha...

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