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by 7BOEING7
Mon Jul 15, 2019 5:17 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Did you mean inhibited? Where did this information come from? IIRC it isn’t on the NG. Please enlighten. Sorry should say inhibited. It is Max only, for detail see below https://www.easa.europa.eu/sites/default/files/dfu/IM.A.120%20Boeing737%20TCDS%20APPENDIX%20ISS%2010.pdf STATEMENT OF ISSUE The a...

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by 7BOEING7
Mon Jul 15, 2019 4:49 am
Forum: Technical/Operations
Topic: RAT Deployment and ETOPS
Replies: 26
Views: 1624

Re: RAT Deployment and ETOPS

On the Boeing side, with the 757/767 it takes failure of both engines (or pulling of the appropriate circuit breakers -- to confirm proper operation) to get the RAT to drop. You have flight controls available for a smooth descent and the battery for instruments. RAT switch also available but is only...

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by 7BOEING7
Mon Jul 15, 2019 1:35 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

LDRA wrote:
At Vmo, Max electric trim is inhabited BY DESIGN. So it does not even take failure conditions to need to use manual trim wheel.


Did you mean inhibited? Where did this information come from? IIRC it isn’t on the NG. Please enlighten.

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by 7BOEING7
Sat Jul 13, 2019 12:18 am
Forum: Technical/Operations
Topic: Mandate fly-by-wire for transport class aircraft through Part 25 regulation?
Replies: 9
Views: 1521

Re: Mandate fly-by-wire for transport class aircraft through Part 25 regulation?

What the hell has happened to this website? it's the "clicks". Just like online news which have click bait headlines, a.net forums have trolls. How many pages would you see on a plane crash if it was a friendly/technical discussion -- at least 50-75% less. Without the trolls they wouldn't...

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by 7BOEING7
Fri Jul 12, 2019 10:40 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I wouldn’t read too much into this. EL was about to retire (>55 and a good retirement package) when he was asked to return to Renton from Everett (777X to 737) to straighten out the issues on the 737 line. He had nothing to do with the 737 issues and what he came to Renton for was accomplished. Any...

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by 7BOEING7
Fri Jul 12, 2019 9:35 pm
Forum: Technical/Operations
Topic: RAT Deployment and ETOPS
Replies: 26
Views: 1624

Re: RAT Deployment and ETOPS

It's been since late 2014 that I worked for a RAT and ADG manufacturer, so it's all a bit hazy, but I do seem to remember that the B787 would have a stacked hydraulic/electric capability. I never got to see one in person, but if I remember correctly from the CMM, the generator and pump were in-line...

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by 7BOEING7
Fri Jul 12, 2019 7:21 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

'Boeing Co. said 737 program chief Eric Lindblad is retiring after about a year in the post' 'Lindblad, 57, “shared with me his desire to retire last year, and we will now begin to embark on a thoughtful and seamless transition plan,” ' So apparently he was planning on early retirement within a few...

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by 7BOEING7
Sun Jul 07, 2019 3:54 am
Forum: Technical/Operations
Topic: A340 dumps fuel touching down while on runway..
Replies: 21
Views: 4049

Re: A340 dumps fuel touching down while on runway..

OldAeroGuy wrote:
Max Q wrote:
That picture definitely shows fuel coming out of one of the dump nozzles


Except the picture appears to be a 757. The 757 does not have fuel jettison (ie dump) nozzles.


The displayed photos are indeed a 757 generating vortices however the linked photo is an AB dumping while on the ground.

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by 7BOEING7
Sun Jul 07, 2019 12:31 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Relative to the back in service date, I believe Boeing indicated after they got dinged by the FAA, they said September would be the date for providing paperwork to the FAA, so in service would be 2-3 months after that if all went well.

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by 7BOEING7
Sun Jul 07, 2019 12:25 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

So EASA asking for a fix for a trim wheel function that is present on hundreds of NG's operating in Europe to allow the MAX back in the air while not grounding the NG passes the sniff test? If the exact issue is present on both the NG and the MAX unrelated to MCAS, based on the NG’s safety record I...

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by 7BOEING7
Fri Jul 05, 2019 11:07 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Here is a potential critical scenario that does not require any MCAS failures -- I think I have described it in a previous post, but I'll gladly do it again (sorry if I don't quote all the previous posts replying to it): 1 - Initial flight conditions are such that MCAS is on but standing by (e.g., ...

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by 7BOEING7
Fri Jul 05, 2019 4:40 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Delivery/Production Thread - 2019
Replies: 325
Views: 89467

Re: Boeing 737MAX Delivery/Production Thread - 2019

Seeing the red tape under L1 on the Ryanair birds, do they have their own stairs or is that door for something else? Airstairs. Thank you. I was wondering if this was still an option. I remember when I was young seeing them on DC-9s and the tail stairs on 727s and DC-9s. Ryanair is one of the very ...

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by 7BOEING7
Fri Jul 05, 2019 4:27 am
Forum: Civil Aviation
Topic: Boeing 737MAX Delivery/Production Thread - 2019
Replies: 325
Views: 89467

Re: Boeing 737MAX Delivery/Production Thread - 2019

Beedo46 wrote:
Seeing the red tape under L1 on the Ryanair birds, do they have their own stairs or is that door for something else?


Airstairs.

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by 7BOEING7
Thu Jul 04, 2019 1:51 am
Forum: Civil Aviation
Topic: Airbus A320neo Family Production/Delivery Thread - 2019
Replies: 144
Views: 40462

Re: Airbus A320neo Family Production/Delivery Thread - 2019

Airbus and CFM International have agreed to increase A320 production to 65 aircraft per month by 2023, according to French newspaper La Tribune. Airbus president Guillaume Faury had announced last month that production was going to reach 63 by 2021, and that they were looking for a further increase...

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by 7BOEING7
Tue Jul 02, 2019 2:37 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97149

Re: Boeing 737MAX Grounded Worldwide Q3 2019

The problem is that airlines would have needed their 737 pilot corps to be split into two type rating groups -- especially onerous for WN, but undesirable for AA and others. There might have been more extensive transition requirements and maybe even separate ratings (doubtful) but the crews would h...

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by 7BOEING7
Sat Jun 29, 2019 10:11 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Does this mean that all new Max aircraft currently sitting on the Boeing production areas storage lots to be delivered to airlines will be updated before delivery with “an” (as quoted above, implying only one) AoA disagree alert. And as an “option” (at X $ optional price) can also get “an” (as quot...

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by 7BOEING7
Sat Jun 29, 2019 8:40 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

How is this possible? After the initial grounding notification, which allowed positioning flights, a subsequent EASA notification prohibits all flights, for any reason. Maybe they got an exemption for this flight. FL200 and "slow" -- could be with the flaps out to prevent MCAS. But on wha...

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by 7BOEING7
Sat Jun 29, 2019 8:14 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

SE-RTC (call sign NAX1TD) currently West of La Rochelle @ FL200.....out of Malaga, but headed for? How is this possible? After the initial grounding notification, which allowed positioning flights, a subsequent EASA notification prohibits all flights, for any reason. Maybe they got an exemption for...

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by 7BOEING7
Sat Jun 29, 2019 7:57 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

After years of McNerney's MBA outsourcing/business venture experiments, it seems that the conclusion by the current CEO, is that it doesn't make that much sense after all for Boeing. Some outsourcing will make sense, but far less. Reading that article is not condemning the MAX at all, but rather th...

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by 7BOEING7
Sat Jun 29, 2019 6:59 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

After years of McNerney's MBA outsourcing/business venture experiments, it seems that the conclusion by the current CEO, is that it doesn't make that much sense after all for Boeing. Some outsourcing will make sense, but far less. Reading that article is not condemning the MAX at all, but rather th...

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by 7BOEING7
Sat Jun 29, 2019 3:07 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

According to Bloomberg the flight control computer problems now reach back to the NG, with planes displaying uncontrolled, random behaviour. Pilots are not happy. http://www.theage.com.au/business/companies/pilots-battled-computer-problems-on-other-boeing-jets-besides-the-max-20190628-p5224z.html O...

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by 7BOEING7
Thu Jun 27, 2019 10:40 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

But what exactly are the symptoms to be determined within 3 seconds? Sts is another source of trim movement without direct pilot command, and it happens often. So how to ensure response to actual runaway without many false alarms? As Mentor Pilot says in his video, STS is making control forces easi...

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by 7BOEING7
Mon Jun 24, 2019 2:54 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

frmrCapCadet wrote:
res FAA: at minimum FAA should appoint the Boeing certifyers, and those appointed people should report to the FAA not Boeing managers.


Was working fine until about 10 years ago, didn’t report to the FAA but they had your back. At least they said they did, fortunately never had to test that theory.

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by 7BOEING7
Sat Jun 22, 2019 12:04 am
Forum: Technical/Operations
Topic: Can the A340-500 do the longest posible flights?
Replies: 31
Views: 5110

Re: Can the A340-500 do the longest posible flights?

I'm guessing a B777-200LR would be in the running. Already a long haul plane, A privately owned one would be carrying less payload than an airline version leaving a lot of weight carrying ability for fuel. With the large cargo area capacity could install a number of aux tanks. The 777-200LR with 3 ...

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by 7BOEING7
Fri Jun 21, 2019 3:16 pm
Forum: Civil Aviation
Topic: Boeing 777X Testing Thread - 2019
Replies: 498
Views: 137256

Re: Boeing 777X Testing Thread - 2019

morrisond wrote:
What is the typical time from first Taxi test to First flight?


A day or two — but not this time. The GE engine issue is a longevity thing — one would think they could complete a lot of the non-engine related testing to shorten EIS delay. Strange???

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by 7BOEING7
Wed Jun 19, 2019 2:21 pm
Forum: Civil Aviation
Topic: Boeing 787 Production/Delivery Thread - 2019
Replies: 464
Views: 104115

Re: Boeing 787 Production/Delivery Thread - 2019

Singapore Airlines 787-10 9V-SCL doing a high speed taxi test https://pbs.twimg.com/media/D9PH5AjXsAAXlhn?format=jpg https://twitter.com/cassidysvacay/status/1140474958482694145?s=20 What speeds are reached during high speed taxi test? Also, looking at the KLM 787-10 images posted above, I feel ner...

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by 7BOEING7
Mon Jun 17, 2019 8:46 pm
Forum: Civil Aviation
Topic: Paris Air Show 2019: Boeing News and Orders Thread
Replies: 310
Views: 86838

Re: Paris Air Show 2019: Boeing News and Orders Thread

How is that milking? Yes, they had a deferred ceremonial signing, but all the attention was for the service contracts, also in the media. The media I found did only mention signing the contract to buy the 18 777-9, non mentioned other contracts. A press release is not the media. Try this: https://w...

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by 7BOEING7
Sun Jun 16, 2019 5:31 pm
Forum: Civil Aviation
Topic: EK reducing 777F Fleet? Omni new owners?
Replies: 27
Views: 10955

Re: EK reducing 777F Fleet? Omni new owners?

trex8 wrote:
OT but if you are type rated on a 772, do you only need a differences course for flying 77W/LR? And is three a separate type rating for flying a 777F or is it only a company sop issue?


One type for all. Probably a differences course for the "F" not so sure about the W/LR.

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by 7BOEING7
Sat Jun 15, 2019 10:00 pm
Forum: Technical/Operations
Topic: Lower cabin altitude A350/787- does the crew notice?
Replies: 13
Views: 3941

Re: Lower cabin altitude A350/787- does the crew notice?

A lot of anecdotal reports on this are highly likely to be placebo since the cabin altitude often wasn't any higher on the last generation. Just because the max cabin altitude was higher doesn't mean it routinely got there.. True, however since the auto delta P is higher for the 747,787,350 and 380...

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by 7BOEING7
Sat Jun 15, 2019 12:34 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

No. Since it hasn't led to an issue with the NG with over 7,000 examples in service over the course of over 20 years this would be an insane suggestion. What would "adequately trained" even mean? Will the pilots that can't turn it start a special workout to get strong enough to do it? The...

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by 7BOEING7
Fri Jun 14, 2019 2:32 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Currently I can't read the CNBC transcript link I posted earlier, but IIRC the entire package (software fix, documentation, training material) was submitted and questions keep going back and forth between Boeing and FAA. It seems the next milestone we should see is a joint FAA-Boeing test flight. B...

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by 7BOEING7
Thu Jun 13, 2019 11:19 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

There are already procedures in place to move airplanes that don't have a standard airworthiness certificate so no political influence is required. But this isn't a non-standard airworthiness certificate. This is a suspended / rescinded airworthiness certificate. I don't think that is technically c...

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by 7BOEING7
Thu Jun 13, 2019 9:49 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

There a lot of undelivered MAXs parked at Boeing Field and Everett. Obviously they were not trucked there from Renton. What are the precise circumstances under which the FAA allows MAXs to be flown (aside from test/certification flights)? Can Boeing move undelivered frames out of Washington state f...

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by 7BOEING7
Wed Jun 12, 2019 8:50 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Say what? The bird strike occurred less than 4 minutes after departure. The AP would not have been on in the first place. The crew made 2 decisions that likely save everyone on board: ditch in the Hudson instead of returning to LGA or going to Teterboro, and turn on the APU out of sync with the che...

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by 7BOEING7
Wed Jun 12, 2019 1:01 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

A quick question... Was the stick shaker active for both pilots in the ET crash? If not, wouldn't that be one of the first things to alert the crew that AOA indicator was wrong for one of them? And if that's the case how would they determine what the correct AOA was so that they could make the corr...

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by 7BOEING7
Wed Jun 12, 2019 12:42 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

The AOA DISAGREE NNC has no memory items -- it just advises that you may have an IAS DISGAREE alert and/or an ALT DISAGREE alert as well as airspeed and/or altitude errors. The IAS DISAGREE NNC sends you to the Airspeed Unreliable NNC which has memory items. I guess ideally facing a lone stick shak...

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by 7BOEING7
Tue Jun 11, 2019 9:39 pm
Forum: Technical/Operations
Topic: Physial design of control of 737 jackscrew
Replies: 16
Views: 2026

Re: Physial design of control of 737 jackscrew

I tried it some time ago. I had extended trim wheel handle, held it and then momentarily applied trim command. It is possible to hold it but force is very high and I think it is possible to catch it and hold when it turns. Just to be clear, there is a technique for grabbing and stopping the trim wh...

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by 7BOEING7
Tue Jun 11, 2019 9:30 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

That's the problem The Single AOA sensor was the input to the MCAS, and lo and Behold? the AOA indication is now an "option". when is should be Standard Equipment I believe the Pilots who crashed would have had a fighting chance had the indication been here so they would know what the pro...

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by 7BOEING7
Tue Jun 11, 2019 9:09 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

From the above effects of MCAS one item that is being ignored is: it leads to increasing control forces ,i.e. it trims nose down and forces the elevator down as well and increases yoke forces. When the electric trim is disabled, does the mcas effect on the yoke also get cancelled? If not then the p...

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by 7BOEING7
Tue Jun 11, 2019 7:22 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Yes, the MAX has an AOA DISAGREE NNC. It’s exactly the same as the procedure for the NG. OK Thanks. Is that also a memory item? The AOA DISAGREE NNC has no memory items -- it just advises that you may have an IAS DISGAREE alert and/or an ALT DISAGREE alert as well as airspeed and/or altitude errors...

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by 7BOEING7
Tue Jun 11, 2019 6:39 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Delivery/Production Thread - 2019
Replies: 325
Views: 89467

Re: Boeing 737MAX Delivery/Production Thread - 2019

After reading the thread I’m confused about one thing and hope someone can help me understand; after the grounding did Boeing decide to store customer planes (or at least some of them) unpainted and after getting a clear idea of certification date they will finish the unfinished frames? Thanks They...

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by 7BOEING7
Mon Jun 10, 2019 4:32 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Actually looking at it as a system... Just poor design all over. An indicator for event trigger is deemed uniportant. It should send to tw other checklists, none of them covering critical aspect of a problem. Problem diagnostics is reduced to guessing.. I know Boeing had been great few decades ago,...

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by 7BOEING7
Mon Jun 10, 2019 1:26 am
Forum: Technical/Operations
Topic: Ansett Australia 767-300s
Replies: 3
Views: 1311

Re: Ansett Australia 767-300s

blacksoviet wrote:
Ansett Australia operated a fleet of 5 767-300s. Were any of these delivered with the Flight Engineer's station? Were these standard 763s or ER models?


IIRC only the 762’s had the FE station.

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by 7BOEING7
Mon Jun 10, 2019 1:03 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Short version: they might have hit stab trim cutout before MCAS activated, and before the aircraft was out of trim. Except there is no NNC procedure that said to do that on AoA disagree warning. Just an AoA disagree doesn't mean MCAS would cause runaway. Actually looking at it as a system... Just p...

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by 7BOEING7
Sun Jun 09, 2019 11:52 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Well I for one hope EASA do the right thing which is to lift the grounding if, and only if, they are completely satisfied with the fixes. How do you suggest they do that, have a MAX shipped to Europe by barge so that EASA personnel can verify and test everything? In this environment, it makes no se...

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by 7BOEING7
Sun Jun 09, 2019 6:19 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

https://www.bbc.com/news/business-48461110 So Chris Brady (author of 737 technical guide and pilot) is wrong saying the disagree light would be first warning something is wrong and could have helped save the plane? His view is wrong and can be discounted can it? No point calling him as a witness in...

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by 7BOEING7
Sun Jun 09, 2019 4:58 am
Forum: Technical/Operations
Topic: Are 767s still built with CRT cockpits?
Replies: 23
Views: 4515

Re: Are 767s still built with CRT cockpits?

Max Q wrote:

Pretty sure I saw a picture of a 757 that was actually used to test the 764 cockpit
set up and displays.


Since the Boeing Company 757 was seconded to military at that time, i would guess it was a simulator and not a real airplane.

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by 7BOEING7
Sun Jun 09, 2019 4:22 am
Forum: Civil Aviation
Topic: Passenger blows slide on PIA 777 at Manchester
Replies: 40
Views: 8963

Re: Passenger blows slide on PIA 777 at Manchester

The last time I flew in a 777 they didn't mention this detail; so how are we supposed to know..... The critical point is not what method is required to open the door, but what method is used to deploy the slide ? Is that a simple push button? To state the obvious; there has to be a compromise betwe...

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by 7BOEING7
Sun Jun 09, 2019 4:07 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382620

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Even CNN's Richard Quest has described not having the "AOA DISAGREE" Alert issue as a red herring. The problem isn't so much that not having a working annunciator is a catastrophic problem. The problem is: - Boeing documented the MAX as having a working AOA disagree annunciator. All of th...

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by 7BOEING7
Sun Jun 09, 2019 3:18 am
Forum: Civil Aviation
Topic: Passenger blows slide on PIA 777 at Manchester
Replies: 40
Views: 8963

Re: Passenger blows slide on PIA 777 at Manchester

No, it cannot be opened. Cabin air pressure > outside pressure and the doors are of a plug type. As a result, the door cannot be rotated (...) when the cabin is pressurized, ensuring that the door remains sealed. Are aircraft "pressurized" before take off? In that case it would be rather ...

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